CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Visual Component Library - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"a41a73b2-ccec-44e7-804e-c392ff4403b5","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Visual_Component_Library","wgTitle":"Visual Component Library","wgCurRevisionId":1243725300,"wgRevisionId":1243725300,"wgArticleId":274874,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["CS1 maint: archived copy as title","Articles with short description","Short description is different from Wikidata","Articles lacking in-text citations from January 2013","All articles lacking in-text citations","All articles with unsourced statements","Articles with unsourced statements from August 2009","Articles prone to spam from May 2023","Borland","Component-based software engineering","Computer libraries","Pascal (programming language) libraries", "Pascal (programming language) software"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Visual_Component_Library","wgRelevantArticleId":274874,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true, "wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q385715","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","jquery.makeCollapsible", "mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Visual Component Library - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/Visual_Component_Library"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=Visual_Component_Library&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/Visual_Component_Library"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Visual_Component_Library rootpage-Visual_Component_Library skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=Visual+Component+Library" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Visual+Component+Library" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Visual+Component+Library" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Visual+Component+Library" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>History</span> </div> </a> <ul id="toc-History-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Technology" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Technology"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Technology</span> </div> </a> <ul id="toc-Technology-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Related_frameworks" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Related_frameworks"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Related frameworks</span> </div> </a> <ul id="toc-Related_frameworks-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Visual Component Library</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 14 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-14" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">14 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/VCL" title="VCL – Czech" lang="cs" hreflang="cs" data-title="VCL" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – German" lang="de" hreflang="de" data-title="Visual Component Library" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Spanish" lang="es" hreflang="es" data-title="Visual Component Library" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – French" lang="fr" hreflang="fr" data-title="Visual Component Library" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B9%84%EC%A3%BC%EC%96%BC_%EC%BB%B4%ED%8F%AC%EB%84%8C%ED%8A%B8_%EB%9D%BC%EC%9D%B4%EB%B8%8C%EB%9F%AC%EB%A6%AC" title="비주얼 컴포넌트 라이브러리 – Korean" lang="ko" hreflang="ko" data-title="비주얼 컴포넌트 라이브러리" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Burmese" lang="my" hreflang="my" data-title="Visual Component Library" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Dutch" lang="nl" hreflang="nl" data-title="Visual Component Library" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Japanese" lang="ja" hreflang="ja" data-title="Visual Component Library" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Polish" lang="pl" hreflang="pl" data-title="Visual Component Library" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/VCL" title="VCL – Romanian" lang="ro" hreflang="ro" data-title="VCL" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Russian" lang="ru" hreflang="ru" data-title="Visual Component Library" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/VCL_(Delphi)" title="VCL (Delphi) – Slovenian" lang="sl" hreflang="sl" data-title="VCL (Delphi)" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/VCL" title="VCL – Turkish" lang="tr" hreflang="tr" data-title="VCL" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Visual_Component_Library" title="Visual Component Library – Ukrainian" lang="uk" hreflang="uk" data-title="Visual Component Library" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q385715#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Visual_Component_Library" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Visual_Component_Library" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Visual_Component_Library"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Visual_Component_Library"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Visual_Component_Library" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Visual_Component_Library" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&oldid=1243725300" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Visual_Component_Library&id=1243725300&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FVisual_Component_Library"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FVisual_Component_Library"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Visual_Component_Library&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Visual_Component_Library&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q385715" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Object Pascal framework for Windows</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_footnotes_needed plainlinks metadata ambox ambox-style ambox-More_footnotes_needed" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/40px-Text_document_with_red_question_mark.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/60px-Text_document_with_red_question_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/80px-Text_document_with_red_question_mark.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article includes a list of <a href="/wiki/Wikipedia:Citing_sources#General_references" title="Wikipedia:Citing sources">general references</a>, but <b>it lacks sufficient corresponding <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a></b>.<span class="hide-when-compact"> Please help to <a href="/wiki/Wikipedia:WikiProject_Reliability" title="Wikipedia:WikiProject Reliability">improve</a> this article by <a href="/wiki/Wikipedia:When_to_cite" title="Wikipedia:When to cite">introducing</a> more precise citations.</span> <span class="date-container"><i>(<span class="date">January 2013</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Visual Component Library (VCL)</caption><tbody><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data"><a href="/wiki/Borland" title="Borland">Borland</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="/wiki/Embarcadero_Technologies" title="Embarcadero Technologies">Embarcadero Technologies</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">1995<span class="noprint">; 29 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1995</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Cross-platform" class="mw-redirect" title="Cross-platform">Cross-platform</a> (<a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a>, <a href="/wiki/MacOS" title="MacOS">macOS</a>, <a href="/wiki/IOS" title="IOS">iOS</a>, <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a>)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/GUI" class="mw-redirect" title="GUI">GUI</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/Commercial_software" title="Commercial software">Commercial</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="http://www.embarcadero.com/kr/products/rad-studio">www<wbr />.embarcadero<wbr />.com<wbr />/kr<wbr />/products<wbr />/rad-studio</a></span><br /><span class="url"><a rel="nofollow" class="external text" href="http://docwiki.embarcadero.com/RADStudio/XE6/en/VCL_Overview">docwiki<wbr />.embarcadero<wbr />.com<wbr />/RADStudio<wbr />/XE6<wbr />/en<wbr />/VCL<wbr />_Overview</a></span></td></tr></tbody></table> <p>The <b>Visual Component Library</b> (<b>VCL</b>) is a visual <a href="/wiki/Software_component" title="Software component">component</a>-based <a href="/wiki/Object-oriented" class="mw-redirect" title="Object-oriented">object-oriented</a> <a href="/wiki/Software_framework" title="Software framework">framework</a> for developing the user interface of <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a> applications. It is written in <a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Visual_Component_Library&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The VCL was developed by <a href="/wiki/Borland" title="Borland">Borland</a> for use in, and is tightly integrated with, its <a href="/wiki/Delphi_(IDE)" class="mw-redirect" title="Delphi (IDE)">Delphi</a> and <a href="/wiki/C%2B%2BBuilder" title="C++Builder">C++Builder</a> <a href="/wiki/Rapid_Application_Development" class="mw-redirect" title="Rapid Application Development">RAD</a> tools. </p><p>In 1995 Borland released Delphi, its first release of an <a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a> IDE and language. Up until that point, Borland's Turbo Pascal for DOS and Windows was largely a procedural language, with minimal object-oriented features, and building UI frameworks with the language required using frameworks like <a href="/wiki/Turbo_Vision" title="Turbo Vision">Turbo Vision</a> and <a href="/wiki/Object_Windows_Library" title="Object Windows Library">Object Windows Library</a>. OWL, a similar framework to <a href="/wiki/Microsoft_Foundation_Class_Library" title="Microsoft Foundation Class Library">MFC</a>, required writing code to create UI objects. </p><p>A key aim of the VCL combined with the <a href="/wiki/Delphi_(programming_language)" class="mw-redirect" title="Delphi (programming language)">Delphi language</a> was to change the requirements of building a user interface. (For context, the Delphi variant of Pascal had a number of innovative object-oriented features, such as properties and runtime type information, inspired by Modula and Smalltalk.) At the time, much UI code work required creating classes inheriting from other classes, and customized objects were often not reusable (for example, a button that performs a specific action cannot be reused in a different application.)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> UI code was also complicated, forcing the programmer to understand and use the Windows API, manage GDI resources, etc.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Finally, a visual user interface arguably should be designed visually, and yet most tools to do so - at the time, mainly Visual Basic - did so in terms of the designer outputting code, creating a fragile, un-manually-editable situation - a problem that still persists today with many UI frameworks, particularly C++-based ones such as Qt.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The combination of the Delphi language and the VCL framework written in that language addressed these by: </p> <ul><li>A streaming framework, allowing an object and subobjects to be streamed to text or binary format - TComponent, the root class of the VCL framework</li> <li>A form designer that saved to a stream, saving the description of the objects not the code required to create them, with objects capable of self-creation when streaming the description back in</li> <li>Language features that allowed instances of a class to be customised without subclassing, in two ways: first, through the use of properties, allowing instances of an object to have its own fields (such as a caption) easily changed through streaming; second, by allowing events - method pointers called at specific places in code - to be handled by another object; that is, the method pointers were attached to an object instance.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> In other words, this creates "custom behaviours through delegation instead of inheritance".<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li>Controls that wrapped native Windows controls, in framework that managed resources<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li></ul> <p>The combination of these resulted in a visual designer that streamed a description; a form (window) that constructed itself from that description, including creating all the other components on that form; and code being written in one place (methods on the form) that could be called by UI elements in response to certain actions, such as a button being clicked calling an OnClick event handler implemented in the form code. At the time this was revolutionary, while today it is an approach used by several other frameworks, such as WinForms and Cocoa. </p><p>This also allowed new components - new visual or non-visual classes - to be written easily. The VCL is Windows-based and its implementations of common controls are wrappers of the Windows API, thus is close to the ground and fully native. New controls can be implemented from scratch or can use existing Windows controls. </p><p>With the release of C++ Builder, the Delphi compiler could emit C++ header files for compiled Delphi-language units, and so the flexibility of the streaming, visually designed UI framework became available for C++. VCL components can in fact be written in C++, but ultimately inherit from Delphi ancestors, since the C++Builder compiler and linker can consume object and header files produced by Delphi. This was one of the first examples of cross-language compatibility, something unseen until .Net. </p><p>Today the VCL includes several hundred visual and non-visual components, usable in both the Delphi and C++ languages. </p> <div class="mw-heading mw-heading2"><h2 id="Technology">Technology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Visual_Component_Library&action=edit&section=2" title="Edit section: Technology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>VCL forms a <a href="/wiki/Class_(object-oriented_programming)" class="mw-redirect" title="Class (object-oriented programming)">class</a> hierarchy with a common <a href="/wiki/Inheritance_(object-oriented_programming)" title="Inheritance (object-oriented programming)">ancestor</a>, the TComponent class (which <a href="/wiki/Inheritance_(object-oriented_programming)" title="Inheritance (object-oriented programming)">inherits</a> from TObject, the root class in <a href="/wiki/Delphi_(programming_language)" class="mw-redirect" title="Delphi (programming language)">Delphi</a> <a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a>). This is a common approach shared by the <a href="/wiki/Java_programming_language" class="mw-redirect" title="Java programming language">Java programming language</a>, <a href="/wiki/Smalltalk" title="Smalltalk">Smalltalk</a>, <a href="/wiki/C_Sharp_(programming_language)" title="C Sharp (programming language)">C#</a> and many other <a href="/wiki/Object-oriented" class="mw-redirect" title="Object-oriented">object-oriented</a> programming languages. </p><p>VCL components cover Windows controls like windows (TForm <a href="/wiki/Class_(object-oriented_programming)" class="mw-redirect" title="Class (object-oriented programming)">class</a>), controls (e.g., TButton, TCheckBox, TLabel classes) as well as <a href="/wiki/Database" title="Database">database</a> access (e.g., ADO or IBX components) or Internet connections (<a href="/wiki/Internet_Direct_(Indy)" class="mw-redirect" title="Internet Direct (Indy)">Indy</a> components). The component approach allows programmers to extend the VCL with many visual and non-visual additional components. There is a large number of free and commercial component packages. Among them are <a href="/w/index.php?title=Project_JEDI_(Programming)&action=edit&redlink=1" class="new" title="Project JEDI (Programming) (page does not exist)">JEDI</a>, <a href="/w/index.php?title=TMS_(Programming)&action=edit&redlink=1" class="new" title="TMS (Programming) (page does not exist)">TMS</a>, <a href="/w/index.php?title=Developer_Express_(Programming)&action=edit&redlink=1" class="new" title="Developer Express (Programming) (page does not exist)">Developer Express</a>, <a href="/w/index.php?title=Mitov_Software_(Programming)&action=edit&redlink=1" class="new" title="Mitov Software (Programming) (page does not exist)">Mitov Software</a>, <a href="/w/index.php?title=Raize_Software_(Programming)&action=edit&redlink=1" class="new" title="Raize Software (Programming) (page does not exist)">Raize Software</a>, <a href="/w/index.php?title=TurboPower_(Programming)&action=edit&redlink=1" class="new" title="TurboPower (Programming) (page does not exist)">TurboPower</a>, <a href="/w/index.php?title=IOComp_(Programming)&action=edit&redlink=1" class="new" title="IOComp (Programming) (page does not exist)">IOComp</a>, <a href="/w/index.php?title=SDL_(Programming)&action=edit&redlink=1" class="new" title="SDL (Programming) (page does not exist)">SDL</a>, <a href="/w/index.php?title=DA-SOFT_Technologies_(Programming)&action=edit&redlink=1" class="new" title="DA-SOFT Technologies (Programming) (page does not exist)">DA-SOFT Technologies</a> and many others. </p><p>While not all VCL components are <a href="/wiki/Thread-safe" class="mw-redirect" title="Thread-safe">thread-safe</a>, VCL supports <a href="/wiki/Thread_(computing)" title="Thread (computing)">multi-threading</a> too. One example is the built in multi-threading support of the <a href="/wiki/OpenWire_(library)" title="OpenWire (library)">OpenWire</a> VCL library. </p><p>VCL provides native support for <a href="/w/index.php?title=Property-Method-Event&action=edit&redlink=1" class="new" title="Property-Method-Event (page does not exist)">PME</a> (properties, methods and events) model at the <a href="/wiki/.NET_Framework" title=".NET Framework">.NET</a> level.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (August 2009)">citation needed</span></a></i>]</sup> </p><p>Much of the <a href="/wiki/.NET_Framework" title=".NET Framework">.NET</a> design, especially WinForms, is modeled after the VCL. One of the main architects of the first Delphi versions, <a href="/wiki/Anders_Hejlsberg" title="Anders Hejlsberg">Anders Hejlsberg</a>, was hired by <a href="/wiki/Microsoft" title="Microsoft">Microsoft</a> and became one of the main architects of .NET. This became the subject of a lawsuit: at the time (1996), "Borland alleged that Microsoft had hired 34 Borland employees over the past 30 months in order to steal Borland trade secrets. Borland also claimed that Microsoft offered and delivered expensive lures to Borland workers. In two cases, incentives topping $1 million were involved."<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> According to delphi.about.com, the bonus was three million dollars in Anders' case. Many Delphi developers find C# quite familiar, due to the design similarities.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Related_frameworks">Related frameworks</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Visual_Component_Library&action=edit&section=3" title="Edit section: Related frameworks"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A cross-platform equivalent of the VCL, called <a href="/wiki/Component_Library_for_Cross_Platform" title="Component Library for Cross Platform">CLX</a> (Component Library for Cross Platform), was later developed for use in <a href="/wiki/Delphi_(programming_language)" class="mw-redirect" title="Delphi (programming language)">Delphi</a>, <a href="/wiki/C%2B%2BBuilder" title="C++Builder">C++Builder</a> and <a href="/wiki/Kylix_programming_tool" class="mw-redirect" title="Kylix programming tool">Kylix</a> in 2000–2001. However, it was abandoned. </p><p>A second cross-platform framework, <a href="/wiki/FireMonkey" title="FireMonkey">FireMonkey</a>, was integrated into Delphi and C++Builder XE2 in 2011. FireMonkey is a vector-based WPF-like framework for UIs on Windows, OSX, iOS and Android. </p><p>The <a href="/wiki/Lazarus_(IDE)" class="mw-redirect" title="Lazarus (IDE)">Lazarus</a> project has a portable (*nix, OS/X, Win32/64+wince) equivalent called <a href="/wiki/Lazarus_(IDE)#Lazarus_Component_Library" class="mw-redirect" title="Lazarus (IDE)">LCL</a>, which was already working when Kylix and CLX emerged. The project maintained its course and ignored Kylix (and later FMX). </p><p><a href="/wiki/OpenOffice.org" title="OpenOffice.org">OpenOffice.org</a> and thus <a href="/wiki/LibreOffice" title="LibreOffice">LibreOffice</a> contain an unrelated graphic library called <i>Visual Class Library</i> (VCL). </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Visual_Component_Library&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/C%2B%2BBuilder" title="C++Builder">C++Builder</a></li> <li><a href="/wiki/Embarcadero_Delphi" class="mw-redirect" title="Embarcadero Delphi">Delphi</a></li> <li><a href="/wiki/Delphi_for_PHP" class="mw-redirect" title="Delphi for PHP">Delphi for PHP</a></li> <li><a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a></li> <li><a href="/wiki/Software_component" title="Software component">Software component</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Visual_Component_Library&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">Delphi Component Design, Danny Thorpe, p9</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">Delphi Component Design, Danny Thorpe, p11</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html#compile-time-form-processing">"Using a Designer UI File in Your Application | Qt 4.8"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Using+a+Designer+UI+File+in+Your+Application+%26%23124%3B+Qt+4.8&rft_id=http%3A%2F%2Fqt-project.org%2Fdoc%2Fqt-4.8%2Fdesigner-using-a-ui-file.html%23compile-time-form-processing&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVisual+Component+Library" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://docwiki.embarcadero.com/RADStudio/XE6/en/VCL_Overview#Using_Events">"VCL Overview - RAD Studio"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=VCL+Overview+-+RAD+Studio&rft_id=http%3A%2F%2Fdocwiki.embarcadero.com%2FRADStudio%2FXE6%2Fen%2FVCL_Overview%23Using_Events&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVisual+Component+Library" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text">Delphi Component Design, Danny Thorpe, p12</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://docwiki.embarcadero.com/RADStudio/XE6/en/Understanding_the_Component_Library">"Understanding the Component Library - RAD Studio"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Understanding+the+Component+Library+-+RAD+Studio&rft_id=http%3A%2F%2Fdocwiki.embarcadero.com%2FRADStudio%2FXE6%2Fen%2FUnderstanding_the_Component_Library&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVisual+Component+Library" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://delphi.about.com/od/delphifornet/a/conspiracydnet_2.htm">"Delphi Tutorials"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Delphi+Tutorials&rft_id=http%3A%2F%2Fdelphi.about.com%2Fod%2Fdelphifornet%2Fa%2Fconspiracydnet_2.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVisual+Component+Library" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140126115859/http://www.glennstephens.com.au/tech/CSharp4DelphiDevelopers.pdf">"Archived copy"</a> <span class="cs1-format">(PDF)</span>. Archived from <a rel="nofollow" class="external text" href="http://www.glennstephens.com.au/tech/CSharp4DelphiDevelopers.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2014-01-26<span class="reference-accessdate">. Retrieved <span class="nowrap">2014-05-28</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Archived+copy&rft_id=http%3A%2F%2Fwww.glennstephens.com.au%2Ftech%2FCSharp4DelphiDevelopers.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVisual+Component+Library" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: CS1 maint: archived copy as title (<a href="/wiki/Category:CS1_maint:_archived_copy_as_title" title="Category:CS1 maint: archived copy as title">link</a>)</span></span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style><style data-mw-deduplicate="TemplateStyles:r886047488">.mw-parser-output .nobold{font-weight:normal}</style></div><div role="navigation" class="navbox" aria-labelledby="Pascal_programming_language_family" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Pascal_programming_language_family" title="Template:Pascal programming language family"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Pascal_programming_language_family" title="Template talk:Pascal programming language family"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Pascal_programming_language_family" title="Special:EditPage/Template:Pascal programming language family"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Pascal_programming_language_family" style="font-size:114%;margin:0 4em"><a href="/wiki/Pascal_(programming_language)" title="Pascal (programming language)">Pascal programming language</a> family</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Programming_language#Dialects,_flavors_and_implementations" title="Programming language">Dialects</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pascal_(programming_language)" title="Pascal (programming language)">Pascal</a></li> <li><a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a></li> <li><a href="/wiki/Pascal_Script" title="Pascal Script">Pascal Script</a></li> <li><a href="/wiki/Oxygene_(programming_language)" title="Oxygene (programming language)">Oxygene</a></li> <li><a href="/wiki/Clascal" title="Clascal">Clascal</a></li> <li><a href="/wiki/Concurrent_Pascal" title="Concurrent Pascal">Concurrent Pascal</a></li> <li><a href="/wiki/Joyce_(programming_language)" title="Joyce (programming language)">Joyce</a></li> <li><a href="/wiki/SuperPascal" title="SuperPascal">SuperPascal</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="6" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Niklaus_Wirth,_UrGU_(cropped).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg/90px-Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg" decoding="async" width="90" height="114" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg/135px-Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/22/Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg/180px-Niklaus_Wirth%2C_UrGU_%28cropped%29.jpg 2x" data-file-width="306" data-file-height="389" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Compiler" title="Compiler">Compilers</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Delphi_(software)" title="Delphi (software)">Delphi</a> (<a href="/wiki/History_of_Delphi_(software)" title="History of Delphi (software)">history</a>)</li> <li><a href="/wiki/Oxygene_(programming_language)" title="Oxygene (programming language)">Oxygene</a></li> <li><a href="/wiki/Pascal_(programming_language)#Compilers_and_interpreters" title="Pascal (programming language)">VSI Pascal</a></li> <li><a href="/wiki/IP_Pascal" title="IP Pascal">IP Pascal</a></li> <li><a href="/wiki/Free_Pascal" title="Free Pascal">Free Pascal</a> (<a href="/wiki/Lazarus_(software)" title="Lazarus (software)">Lazarus</a>)</li> <li><a href="/wiki/PascalABC.NET" title="PascalABC.NET">PascalABC.NET</a></li> <li><a href="/wiki/GNU_Pascal" title="GNU Pascal">GNU Pascal</a></li> <li><a href="/wiki/Turbo51" title="Turbo51">Turbo51</a></li> <li><a href="/wiki/Pic_Micro_Pascal" title="Pic Micro Pascal">Pic Micro Pascal</a></li> <li><a href="/wiki/Amsterdam_Compiler_Kit" title="Amsterdam Compiler Kit">ACK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Discontinued</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Virtual_Pascal" title="Virtual Pascal">Virtual Pascal</a></li> <li><a href="/wiki/Apple_Pascal" title="Apple Pascal">Apple Pascal</a></li> <li><a href="/wiki/Borland_Kylix" title="Borland Kylix">Borland Kylix</a></li> <li><a href="/wiki/Turbo_Pascal" title="Turbo Pascal">Turbo Pascal</a></li> <li><a href="/wiki/Microsoft_Pascal" title="Microsoft Pascal">Microsoft Pascal</a></li> <li><a href="/wiki/UCSD_Pascal" title="UCSD Pascal">UCSD Pascal</a></li> <li><a href="/wiki/JRT_Pascal" title="JRT Pascal">JRT Pascal</a></li> <li><a href="/wiki/Pascal/MT%2B" title="Pascal/MT+">Pascal/MT+</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/API" title="API">API</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Component_Library_for_Cross_Platform" title="Component Library for Cross Platform">CLX</a></li> <li><a href="/wiki/Free_Component_Library" title="Free Component Library">FCL</a></li> <li><a href="/wiki/FireMonkey" title="FireMonkey">FireMonkey</a></li> <li><a href="/wiki/Lazarus_Component_Library" title="Lazarus Component Library">LCL</a></li> <li><a href="/wiki/Object_Windows_Library" title="Object Windows Library">Object Windows Library</a></li> <li><a href="/wiki/OpenWire_(library)" title="OpenWire (library)">OpenWire</a></li> <li><a href="/wiki/Free_Pascal_Runtime_Library" title="Free Pascal Runtime Library">RTL</a></li> <li><a href="/wiki/Turbo_Vision" title="Turbo Vision">Turbo Vision</a></li> <li><a class="mw-selflink selflink">Visual Component Library</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Microcomputer" title="Microcomputer">Microcomputer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pascal_MicroEngine" title="Pascal MicroEngine">Pascal MicroEngine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Comparison_of_programming_languages" title="Comparison of programming languages">Comparisons</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Comparison_of_Pascal_and_C" title="Comparison of Pascal and C">Pascal and C</a></li> <li><a href="/wiki/Comparison_of_Pascal_and_Delphi" title="Comparison of Pascal and Delphi">Pascal and Delphi</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Designer</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Niklaus_Wirth" title="Niklaus Wirth">Niklaus Wirth</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><a href="/wiki/Generic_programming#Genericity_in_Pascal" title="Generic programming">Genericity</a></li></ul> <dl><dt><span class="nobold">Related to</span></dt> <dd><a href="/wiki/ALGOL" title="ALGOL">ALGOL</a> (1958)</dd> <dd><a href="/wiki/Modula-2" title="Modula-2">Modula-2</a> (1977)</dd> <dd><a href="/wiki/Ada_(programming_language)" title="Ada (programming language)">Ada</a> (1983)</dd> <dd><a href="/wiki/Oberon_(programming_language)" title="Oberon (programming language)">Oberon</a> (1986)</dd> <dd><a href="/wiki/Modula-3" title="Modula-3">Modula-3</a> (1988)</dd> <dd><a href="/wiki/Oberon-2" title="Oberon-2">Oberon-2</a> (1991)</dd> <dd><a href="/wiki/Component_Pascal" title="Component Pascal">Component Pascal</a> (1991)</dd></dl> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="List_of_widget_toolkits" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Widget_toolkits" title="Template:Widget toolkits"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Widget_toolkits" title="Template talk:Widget toolkits"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Widget_toolkits" title="Special:EditPage/Template:Widget toolkits"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="List_of_widget_toolkits" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_widget_toolkits" title="List of widget toolkits">List</a> of <a href="/wiki/Widget_toolkit" title="Widget toolkit">widget toolkits</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><b>Low-level platform-specific</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/AmigaOS" title="AmigaOS">AmigaOS</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Intuition_(Amiga)" title="Intuition (Amiga)">Intuition</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Classic_Mac_OS" title="Classic Mac OS">Classic Mac OS</a>, <a href="/wiki/MacOS" title="MacOS">macOS</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Macintosh_Toolbox" title="Macintosh Toolbox">Macintosh Toolbox</a></li> <li><a href="/wiki/Carbon_(API)" title="Carbon (API)">Carbon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Windows_API" title="Windows API">Windows API</a></li> <li><a href="/wiki/Universal_Windows_Platform" title="Universal Windows Platform">UWP</a> <ul><li><a href="/wiki/Windows_Runtime" title="Windows Runtime">WinRT</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Unix" title="Unix">Unix</a>,<br />under <a href="/wiki/X_Window_System" title="X Window System">X11</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Xlib" title="Xlib">Xlib</a></li> <li><a href="/wiki/XCB" title="XCB">XCB</a></li> <li><a href="/wiki/X_Toolkit_Intrinsics" title="X Toolkit Intrinsics">X Toolkit Intrinsics</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/BeOS" title="BeOS">BeOS</a>, <a href="/wiki/Haiku_(operating_system)" title="Haiku (operating system)">Haiku</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BeOS_API" class="mw-redirect" title="BeOS API">BeOS API</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="CLI" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Mono_(software)#Xamarin.Android" title="Mono (software)">Xamarin.Android</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><b>Low Level Cross-platform</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/OpenTK" title="OpenTK">OpenTK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/C_(programming_language)" title="C (programming language)">C</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GDK" title="GDK">GDK</a></li> <li><a href="/wiki/Simple_DirectMedia_Layer" title="Simple DirectMedia Layer">Simple DirectMedia Layer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Java_(programming_language)" title="Java (programming language)">Java</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Java_OpenGL" title="Java OpenGL">JOGL</a></li> <li><a href="/wiki/Lightweight_Java_Game_Library" class="mw-redirect" title="Lightweight Java Game Library">LWJGL</a></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><b>High-level, platform-specific</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/AmigaOS" title="AmigaOS">AmigaOS</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BOOPSI" title="BOOPSI">BOOPSI</a></li> <li><a href="/wiki/Magic_User_Interface" title="Magic User Interface">MUI</a></li> <li><a href="/wiki/ReAction_GUI" title="ReAction GUI">ReAction GUI</a></li> <li><a href="/wiki/Zune_(widget_toolkit)" title="Zune (widget toolkit)">Zune</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Classic_Mac_OS" title="Classic Mac OS">Classic Mac OS</a>, <a href="/wiki/MacOS" title="MacOS">macOS</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MacApp" title="MacApp">MacApp</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Objective-C" title="Objective-C">Objective-C</a>, <a href="/wiki/Swift_(programming_language)" title="Swift (programming language)">Swift</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cocoa_(API)" title="Cocoa (API)">Cocoa</a></li> <li><a href="/wiki/Cocoa_Touch" class="mw-redirect" title="Cocoa Touch">Cocoa Touch</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/C%2B%2B" title="C++">C++</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MacApp" title="MacApp">MacApp</a></li> <li><a href="/wiki/PowerPlant" title="PowerPlant">PowerPlant</a></li> <li><a href="/wiki/THINK_C" title="THINK C">THINK C</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Xamarin#Xamarin.Mac" title="Xamarin">Xamarin.Mac</a></li> <li><a href="/wiki/Mono_(software)#Xamarin.iOS" title="Mono (software)">Xamarin.iOS</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Windows_Forms" title="Windows Forms">Windows Forms</a></li> <li><a href="/wiki/Extensible_Application_Markup_Language" title="Extensible Application Markup Language">XAML</a> <ul><li><a href="/wiki/Windows_Presentation_Foundation" title="Windows Presentation Foundation">Windows Presentation Foundation</a></li> <li><a href="/wiki/Windows_UI_Library" title="Windows UI Library">Windows UI Library</a></li> <li><a href="/wiki/Microsoft_Silverlight" title="Microsoft Silverlight">Silverlight</a></li></ul></li> <li><a href="/wiki/Microsoft_XNA" title="Microsoft XNA">Microsoft XNA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/C%2B%2B" title="C++">C++</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Microsoft_Foundation_Class_Library" title="Microsoft Foundation Class Library">MFC</a></li> <li><a href="/wiki/Active_Template_Library" title="Active Template Library">Active Template Library</a></li> <li><a href="/wiki/Windows_Template_Library" title="Windows Template Library">Windows Template Library</a></li> <li><a href="/wiki/Object_Windows_Library" title="Object Windows Library">Object Windows Library</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">Visual Component Library</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Unix" title="Unix">Unix</a>,<br />under <a href="/wiki/X_Window_System" title="X Window System">X11</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/X_Athena_Widgets" title="X Athena Widgets">Athena (Xaw)</a></li> <li><a href="/wiki/LessTif" title="LessTif">LessTif</a></li> <li><a href="/wiki/Motif_(software)" title="Motif (software)">Motif</a></li> <li><a href="/wiki/OLIT" title="OLIT">OLIT</a></li> <li><a href="/wiki/XForms_(toolkit)" title="XForms (toolkit)">XForms</a></li> <li><a href="/wiki/XView" title="XView">XView</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">On <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Android_software_development#Qt_for_Android" title="Android software development">Qt for Android</a></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><b>High-level, cross-platform</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/C_(programming_language)" title="C (programming language)">C</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Enlightenment_Foundation_Libraries" title="Enlightenment Foundation Libraries">Enlightenment Foundation Libraries</a></li> <li><a href="/wiki/GTK" title="GTK">GTK</a></li> <li><a href="/wiki/IUP_(software)" title="IUP (software)">IUP</a></li> <li><a href="/wiki/XForms_(toolkit)" title="XForms (toolkit)">XForms</a></li> <li><a href="/wiki/XVT" title="XVT">XVT</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/C%2B%2B" title="C++">C++</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bedrock_(framework)" title="Bedrock (framework)">Bedrock</a></li> <li><a href="/wiki/CEGUI" title="CEGUI">CEGUI</a></li> <li><a href="/wiki/Component_Library_for_Cross_Platform" title="Component Library for Cross Platform">Component Library for Cross Platform</a></li> <li><a href="/wiki/FLTK" title="FLTK">FLTK</a></li> <li><a href="/wiki/Fox_toolkit" title="Fox toolkit">FOX toolkit</a></li> <li><a href="/wiki/OpenGL_User_Interface_Library" class="mw-redirect" title="OpenGL User Interface Library">OpenGL User Interface Library</a></li> <li><a href="/wiki/Gtkmm" title="Gtkmm">gtkmm</a></li> <li><a href="/wiki/JUCE" title="JUCE">JUCE</a></li> <li><a href="/wiki/Qt_(software)" title="Qt (software)">Qt</a></li> <li><a href="/wiki/Rogue_Wave_Software" title="Rogue Wave Software">Rogue Wave Views</a></li> <li><a href="/wiki/TnFOX" class="mw-redirect" title="TnFOX">TnFOX</a></li> <li><a href="/wiki/Ultimate%2B%2B" title="Ultimate++">U++</a></li> <li><a href="/wiki/Wt_(web_toolkit)" title="Wt (web toolkit)">Wt</a></li> <li><a href="/wiki/WxWidgets" title="WxWidgets">wxWidgets</a></li> <li><a href="/wiki/Simple_and_Fast_Multimedia_Library" title="Simple and Fast Multimedia Library">Simple and Fast Multimedia Library</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Objective-C" title="Objective-C">Objective-C</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GNUstep" title="GNUstep">GNUstep</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gtk_Sharp" class="mw-redirect" title="Gtk Sharp">Gtk#</a></li> <li><a href="/wiki/Tao_Framework" title="Tao Framework">Tao Framework</a> <ul><li><a href="/wiki/OpenTK" title="OpenTK">OpenTK</a></li></ul></li> <li><a href="/wiki/UIML" title="UIML">UIML</a></li> <li><a href="/wiki/MonoGame" title="MonoGame">MonoGame</a></li> <li><a href="/wiki/Moonlight_(runtime)" title="Moonlight (runtime)">Moonlight</a></li> <li><a href="/wiki/Xamarin#Xamarin.Forms" title="Xamarin">Xamarin.Forms</a></li> <li><a href="/w/index.php?title=XWT_(Mono)&action=edit&redlink=1" class="new" title="XWT (Mono) (page does not exist)">XWT</a><a rel="nofollow" class="external autonumber" href="https://www.mono-project.com/docs/gui/#xwt">[1]</a><a rel="nofollow" class="external autonumber" href="https://github.com/mono/xwt">[2]</a></li> <li><a href="/wiki/.NET#.NET_MAUI" title=".NET">.NET MAUI</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Adobe_Flash" title="Adobe Flash">Adobe Flash</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apache_Flex" title="Apache Flex">Apache Flex</a> <ul><li><a href="/wiki/MXML" title="MXML">MXML</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Go_(programming_language)" title="Go (programming language)">Go</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fyne_(software)" title="Fyne (software)">Fyne</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Haskell" title="Haskell">Haskell</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/WxHaskell" title="WxHaskell">wxHaskell</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Java_(programming_language)" title="Java (programming language)">Java</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abstract_Window_Toolkit" title="Abstract Window Toolkit">Abstract Window Toolkit</a></li> <li><a href="/wiki/FXML" title="FXML">FXML</a></li> <li><a href="/wiki/JavaFX" title="JavaFX">JavaFX</a></li> <li><a href="/wiki/Qt_Jambi" class="mw-redirect" title="Qt Jambi">Qt Jambi</a></li> <li><a href="/wiki/Swing_(Java)" title="Swing (Java)">Swing</a></li> <li><a href="/wiki/Standard_Widget_Toolkit" title="Standard Widget Toolkit">Standard Widget Toolkit</a></li> <li><a href="/wiki/Google_Web_Toolkit" title="Google Web Toolkit">Google Web Toolkit</a></li> <li><a href="/wiki/Lightweight_User_Interface_Toolkit" title="Lightweight User Interface Toolkit">Lightweight User Interface Toolkit</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/JavaScript" title="JavaScript">JavaScript</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dojo_Toolkit" title="Dojo Toolkit">Dojo Toolkit</a></li> <li><a href="/wiki/Echo_(framework)" title="Echo (framework)">Echo</a></li> <li><a href="/wiki/Ext_JS" title="Ext JS">Ext JS</a></li> <li><a href="/wiki/Google_Closure_Tools" title="Google Closure Tools">Google Closure Tools</a></li> <li><a href="/wiki/JQuery_UI" title="JQuery UI">jQuery UI</a></li> <li><a href="/wiki/OpenUI5" title="OpenUI5">OpenUI5</a></li> <li><a href="/wiki/Qooxdoo" title="Qooxdoo">Qooxdoo</a></li> <li><a href="/wiki/YUI_Library" title="YUI Library">YUI</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Lisp" title="Common Lisp">Common Lisp</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/LispWorks" title="LispWorks">CAPI</a></li> <li><a href="/wiki/Common_Lisp_Interface_Manager" title="Common Lisp Interface Manager">CLIM</a></li> <li><a href="/wiki/Allegro_Common_Lisp" title="Allegro Common Lisp">Common Graphics</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lua_(programming_language)" title="Lua (programming language)">Lua</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IUP_(software)" title="IUP (software)">IUP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pascal_(programming_language)" title="Pascal (programming language)">Pascal</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lazarus_Component_Library" title="Lazarus Component Library">Lazarus Component Library</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Object_Pascal" title="Object Pascal">Object Pascal</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Component_Library_for_Cross_Platform" title="Component Library for Cross Platform">Component Library for Cross Platform</a></li> <li><a href="/wiki/FpGUI" title="FpGUI">fpGUI</a></li> <li><a href="/wiki/IP_Pascal" title="IP Pascal">IP Pascal</a></li> <li><a href="/wiki/FireMonkey" title="FireMonkey">FireMonkey</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Perl" title="Perl">Perl</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Perl/<a href="/wiki/Tk_(software)" title="Tk (software)">Tk</a></li> <li><a href="/wiki/WxPerl" class="mw-redirect" title="WxPerl">wxPerl</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/PHP" title="PHP">PHP</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PHP-GTK" title="PHP-GTK">PHP-GTK</a></li> <li><a href="/wiki/WxPHP" title="WxPHP">wxPHP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Python_(programming_language)" title="Python (programming language)">Python</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tkinter" title="Tkinter">Tkinter</a></li> <li><a href="/wiki/Kivy_(framework)" title="Kivy (framework)">Kivy</a></li> <li><a href="/wiki/PySide" title="PySide">PySide</a></li> <li><a href="/wiki/PyQt" title="PyQt">PyQt</a></li> <li><a href="/wiki/PyGTK" title="PyGTK">PyGTK</a></li> <li><a href="/wiki/WxPython" title="WxPython">wxPython</a></li> <li><a href="/wiki/Pyjs" title="Pyjs">Pyjs</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ruby_(programming_language)" title="Ruby (programming language)">Ruby</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shoes_(GUI_toolkit)" class="mw-redirect" title="Shoes (GUI toolkit)">Shoes</a></li> <li><a href="/wiki/QtRuby" class="mw-redirect" title="QtRuby">QtRuby</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Tcl" title="Tcl">Tcl</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tk_(software)" title="Tk (software)">Tcl/Tk</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/XML" title="XML">XML</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Glade_Interface_Designer" title="Glade Interface Designer">GladeXML</a></li> <li><a href="/wiki/Lively_Kernel" title="Lively Kernel">Lively Kernel</a></li> <li><a href="/wiki/Extensible_Application_Markup_Language" title="Extensible Application Markup Language">Extensible Application Markup Language</a></li> <li><a href="/wiki/XUL" title="XUL">XUL</a></li> <li><a href="/wiki/Wt_(web_toolkit)" title="Wt (web toolkit)">Wt</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Unix_shell" title="Unix shell">shell</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Newt_(programming_library)" title="Newt (programming library)">Newt</a></li> <li><a href="/wiki/CDK_(programming_library)" title="CDK (programming library)">CDK</a></li> <li><a href="/wiki/Dialog_(software)" title="Dialog (software)">Dialog</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Dart_(programming_language)" title="Dart (programming language)">Dart</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Flutter_(software)" title="Flutter (software)">Flutter</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Graphical_user_interface_builders" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:GUI_builders" title="Template:GUI builders"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/w/index.php?title=Template_talk:GUI_builders&action=edit&redlink=1" class="new" title="Template talk:GUI builders (page does not exist)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:GUI_builders" title="Special:EditPage/Template:GUI builders"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Graphical_user_interface_builders" style="font-size:114%;margin:0 4em"><a href="/wiki/Graphical_user_interface_builder" title="Graphical user interface builder">Graphical user interface builders</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Qt_(software)" title="Qt (software)">Qt</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Open_source" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Qt_Creator" title="Qt Creator">Qt Creator</a></li> <li><a href="/wiki/KDevelop" title="KDevelop">KDevelop</a></li> <li><a href="/wiki/Gambas" title="Gambas">Gambas</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/GTK" title="GTK">GTK</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Glade_Interface_Designer" title="Glade Interface Designer">Glade Interface Designer</a></li> <li><a href="/wiki/Gambas" title="Gambas">Gambas</a></li> <li><a href="/wiki/MonoDevelop" title="MonoDevelop">Stetic GUI Designer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Xojo" title="Xojo">Xojo</a> (on <a href="/wiki/Linux" title="Linux">Linux</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/WxWidgets" title="WxWidgets">wxWidgets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Open_source" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Code::Blocks" title="Code::Blocks">Code::Blocks</a></li> <li><a href="/wiki/CodeLite" title="CodeLite">CodeLite</a></li> <li><a href="/wiki/Glade_Interface_Designer" title="Glade Interface Designer">wxGlade</a></li> <li><a href="/wiki/WxFormBuilder" title="WxFormBuilder">wxFormBuilder</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">CLI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SharpDevelop" title="SharpDevelop">SharpDevelop</a></li> <li><a href="/wiki/PascalABC.NET" title="PascalABC.NET">PascalABC.NET</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Microsoft_Visual_Studio" class="mw-redirect" title="Microsoft Visual Studio">Microsoft Visual Studio</a></li> <li><a href="/wiki/Microsoft_Blend" title="Microsoft Blend">Microsoft Blend</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink selflink">VCL</a>,<br /><a class="mw-selflink-fragment" href="#Related_frameworks">related</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a>, <a href="/wiki/Lazarus_Component_Library" title="Lazarus Component Library">LCL</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lazarus_(IDE)" class="mw-redirect" title="Lazarus (IDE)">Lazarus</a></li> <li><a href="/wiki/FreeBASIC" title="FreeBASIC">Visual FB Editor</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Delphi_(software)" title="Delphi (software)">Delphi</a></li> <li><a href="/wiki/C%2B%2BBuilder" title="C++Builder">C++Builder</a></li> <li><a href="/wiki/RadPHP" class="mw-redirect" title="RadPHP">RadPHP</a></li> <li><a href="/wiki/Borland_Kylix" title="Borland Kylix">Borland Kylix</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cocoa_(API)" title="Cocoa (API)">Cocoa</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Proprietary" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Xcode" title="Xcode">Xcode</a>, <a href="/wiki/Interface_Builder" title="Interface Builder">Interface Builder</a></li> <li><a href="/wiki/Xojo" title="Xojo">Xojo</a> (on <a href="/wiki/MacOS" title="MacOS">macOS</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Java_(programming_language)" title="Java (programming language)">Java</a>-based</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Android_Studio" title="Android Studio">Android Studio</a> (via <a href="/wiki/XML" title="XML">XML</a>)</li> <li><a href="/wiki/Eclipse_(software)" title="Eclipse (software)">Eclipse</a> (via <a href="/wiki/Standard_Widget_Toolkit" title="Standard Widget Toolkit">SWT</a>)</li> <li><a href="/wiki/NetBeans#GUI_design_tool" title="NetBeans">NetBeans</a> (via <a href="/wiki/Swing_(Java)" title="Swing (Java)">Swing</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IntelliJ_IDEA" title="IntelliJ IDEA">IntelliJ IDEA</a></li> <li><a href="/wiki/JDeveloper" title="JDeveloper">JDeveloper</a> (via <a href="/wiki/Swing_(Java)" title="Swing (Java)">Swing</a>)</li> <li><a href="/wiki/WaveMaker" title="WaveMaker">WaveMaker</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Windows_API" title="Windows API">Windows API</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>GNAVI</li> <li><a href="/wiki/FreeBASIC" title="FreeBASIC">WinFBE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CA-Realizer" title="CA-Realizer">CA-Realizer</a></li> <li><a href="/wiki/Visual_Basic_(classic)" title="Visual Basic (classic)">Visual Basic</a></li> <li><a href="/wiki/Xojo" title="Xojo">Xojo</a> (for <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a>)</li> <li><a href="/wiki/RapidQ" title="RapidQ">RapidQ</a></li> <li><a href="/wiki/Liberty_BASIC" title="Liberty BASIC">Liberty BASIC</a></li> <li><a href="/wiki/PureBasic" title="PureBasic">PureBasic</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open-source_software" title="Open-source software">Open source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/FLUID" title="FLUID">FLUID</a></li> <li><a href="/wiki/Gorm_(computing)" class="mw-redirect" title="Gorm (computing)">Gorm</a></li> <li><a href="/wiki/IUP_(software)" title="IUP (software)">IUP</a></li> <li><a href="/wiki/QB64" title="QB64">InForm</a></li> <li><a href="/wiki/Morphic_(software)" title="Morphic (software)">Morphic</a></li> <li><a href="/wiki/Ultimate%2B%2B" title="Ultimate++">TheIDE</a></li> <li><a href="/wiki/XBasic" title="XBasic">XBasic</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Axure_RP" title="Axure RP">Axure RP</a></li> <li><a href="/wiki/Clarion_(programming_language)" title="Clarion (programming language)">Clarion IDE</a></li> <li><a href="/wiki/JUCE" title="JUCE">Projucer</a></li> <li><a href="/wiki/XVT" title="XVT">XVT</a> Design</li> <li><a href="/wiki/Resource_construction_set" title="Resource construction set">Resource construction set</a></li> <li><a href="/wiki/LANSA_(development_environment)" title="LANSA (development environment)">LANSA</a></li> <li><a href="/wiki/Softwell_Maker" title="Softwell Maker">Softwell Maker</a></li> <li><a href="/wiki/Embedded_Wizard" title="Embedded Wizard">Embedded Wizard</a></li> <li><a href="/wiki/OutSystems" title="OutSystems">OutSystems</a></li> <li><a href="/wiki/Mendix" title="Mendix">Mendix</a></li> <li><a href="/wiki/Topincs" title="Topincs">Topincs</a></li> <li><a href="/wiki/PowerBuilder" title="PowerBuilder">PowerBuilder</a></li> <li><a href="/wiki/NS_Basic" title="NS Basic">AppStudio</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Visual_Component_Library&oldid=1243725300">https://en.wikipedia.org/w/index.php?title=Visual_Component_Library&oldid=1243725300</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Borland" title="Category:Borland">Borland</a></li><li><a href="/wiki/Category:Component-based_software_engineering" title="Category:Component-based software engineering">Component-based software engineering</a></li><li><a href="/wiki/Category:Computer_libraries" title="Category:Computer libraries">Computer libraries</a></li><li><a href="/wiki/Category:Pascal_(programming_language)_libraries" title="Category:Pascal (programming language) libraries">Pascal (programming language) libraries</a></li><li><a href="/wiki/Category:Pascal_(programming_language)_software" title="Category:Pascal (programming language) software">Pascal (programming language) software</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:CS1_maint:_archived_copy_as_title" title="Category:CS1 maint: archived copy as title">CS1 maint: archived copy as title</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Articles_lacking_in-text_citations_from_January_2013" title="Category:Articles lacking in-text citations from January 2013">Articles lacking in-text citations from January 2013</a></li><li><a href="/wiki/Category:All_articles_lacking_in-text_citations" title="Category:All articles lacking in-text citations">All articles lacking in-text citations</a></li><li><a href="/wiki/Category:All_articles_with_unsourced_statements" title="Category:All articles with unsourced statements">All articles with unsourced statements</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_August_2009" title="Category:Articles with unsourced statements from August 2009">Articles with unsourced statements from August 2009</a></li><li><a href="/wiki/Category:Articles_prone_to_spam_from_May_2023" title="Category:Articles prone to spam from May 2023">Articles prone to spam from May 2023</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 3 September 2024, at 02:15<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=Visual_Component_Library&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-pj8zz","wgBackendResponseTime":172,"wgPageParseReport":{"limitreport":{"cputime":"0.445","walltime":"0.582","ppvisitednodes":{"value":2496,"limit":1000000},"postexpandincludesize":{"value":128886,"limit":2097152},"templateargumentsize":{"value":3510,"limit":2097152},"expansiondepth":{"value":17,"limit":100},"expensivefunctioncount":{"value":6,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":45670,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 479.223 1 -total"," 28.48% 136.467 16 Template:Navbox"," 21.11% 101.178 1 Template:Reflist"," 19.24% 92.205 1 Template:Pascal_programming_language_family"," 17.85% 85.521 5 Template:Cite_web"," 16.53% 79.236 1 Template:Infobox_software"," 14.75% 70.666 1 Template:Short_description"," 13.50% 64.680 1 Template:More_footnotes_needed"," 12.05% 57.733 1 Template:Infobox"," 11.95% 57.261 1 Template:Ambox"]},"scribunto":{"limitreport-timeusage":{"value":"0.249","limit":"10.000"},"limitreport-memusage":{"value":5689423,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-5nd9x","timestamp":"20241124072023","ttl":578386,"transientcontent":true}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Visual Component Library","url":"https:\/\/en.wikipedia.org\/wiki\/Visual_Component_Library","sameAs":"http:\/\/www.wikidata.org\/entity\/Q385715","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q385715","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2003-07-22T05:01:10Z","dateModified":"2024-09-03T02:15:25Z","headline":"visual Library"}</script> </body> </html>