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dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">C++ application framework</div> <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">Object Windows Library</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> Software Corporation</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">1991<span class="noprint">; 34 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1991</span>)</span></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">OWLNext 7.0.17 / February 19, 2025<span class="noprint">; 5 days ago</span><span style="display:none"> (<span class="bday dtstart published updated">2025-02-19</span>)</span></div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="url"><a rel="nofollow" class="external text" href="https://svn.code.sf.net/p/owlnext/code/trunk">svn<wbr />.code<wbr />.sf<wbr />.net<wbr />/p<wbr />/owlnext<wbr />/code<wbr />/trunk</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q994371#P1324" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="/wiki/C%2B%2B" title="C++">C++</a></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/Windows" class="mw-redirect" title="Windows">Windows</a>, <a href="/wiki/OS/2" title="OS/2">OS/2</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/Software_framework" title="Software framework">Software framework</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/Proprietary_software" title="Proprietary software">Proprietary</a> with <a href="/wiki/Open-source_software" title="Open-source software">open-source</a> patches</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="https://sourceforge.net/p/owlnext/wiki/">sourceforge<wbr />.net<wbr />/p<wbr />/owlnext<wbr />/wiki<wbr />/</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q994371#P856" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></td></tr></tbody></table> <p>The <b>Object Windows Library</b> (OWL) is a <a href="/wiki/C%2B%2B" title="C++">C++</a> object-oriented <a href="/wiki/Application_framework" title="Application framework">application framework</a> designed to simplify desktop application development for <a href="/wiki/Windows" class="mw-redirect" title="Windows">Windows</a> and (some releases) <a href="/wiki/OS/2" title="OS/2">OS/2</a>. </p><p>OWL was introduced by <a href="/wiki/Borland" title="Borland">Borland</a> in 1991 and eventually deprecated in 1997 in favor of their <a href="/wiki/Visual_Component_Library" title="Visual Component Library">Visual Component Library</a> (VCL). Its primary competitor was the <a href="/wiki/Microsoft_Foundation_Class_Library" title="Microsoft Foundation Class Library">Microsoft Foundation Class Library</a> (MFC). OWLNext,<sup id="cite_ref-OWLNext_1-0" class="reference"><a href="#cite_note-OWLNext-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> an <a href="/wiki/Open-source_software" title="Open-source software">open-source</a> project driven by the OWL user community, has continued the maintenance of OWL, ensuring that the library and applications that use it work with the latest version of Windows and modern C++ compilers. </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=Object_Windows_Library&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the early 1990s, <a href="/wiki/Borland" title="Borland">Borland</a> dominated the C++ market. In 1991, Borland introduced <a href="/wiki/Borland_C%2B%2B" title="Borland C++">Borland C++</a> 3.0 which included OWL 1.0. At that time, C++ was just beginning to replace <a href="/wiki/C_(programming_language)" title="C (programming language)">C</a> for development of commercial software, driven by the rising of the Windows platform and the rapid adoption of <a href="/wiki/Object-oriented_design" class="mw-redirect" title="Object-oriented design">object-oriented design</a>. During this period, OWL was a popular choice for Windows application development. </p><p>In 1992, Microsoft introduced <a href="/wiki/Microsoft_Foundation_Classes" class="mw-redirect" title="Microsoft Foundation Classes">MFC</a> as part of Microsoft C++ 7.0. As a similar C++ application framework for Windows, MFC immediately became OWL's primary competitor in the C++ application development market. </p><p>OWL 1.0 depended on <i>Dynamic Dispatch Virtual Tables</i> (DDVT), a proprietary extension to C++ that allowed the programmer to bind Windows messages (events) to functions (event handlers) in a simple manner and with little run-time overhead. MFC, on the other hand, used a solution that did not require a language extension. </p><p>In 1993, Borland launched Borland C++ 4.0 which included OWL 2.0. In this version of OWL, the proprietary DDVT extension was replaced by <i>response tables</i>, a <a href="/wiki/Macro_(computer_science)" title="Macro (computer science)">macro</a>-based solution compatible with standard C++ and similar to MFC in use. A conversion tool (OWLCVT) was included to migrate code from OWL 1.0 to OWL 2.0. </p><p>In April 1993, Borland and <a href="/wiki/Novell" title="Novell">Novell</a> signed an agreement to port OWL to Novell <a href="/wiki/AppWare" title="AppWare">AppWare</a> Foundation. AppWare Foundation was an API designed by Novell to be <a href="/wiki/Cross-platform" class="mw-redirect" title="Cross-platform">cross-platform</a>, allowing the deployment of applications on Mac, Windows and Unix clients and with several network services. The main tools for developing in AppWare were OWL and AppBuilder.<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> However, in late 1994, Novell CEO <a href="/wiki/Raymond_Noorda" class="mw-redirect" title="Raymond Noorda">Raymond Noorda</a> resigned. Novell expansion plans were reconsidered, AppWare development was stopped and so was OWL for AppWare. In 1995 a group of original team members bought AppBuilder. In the same year, Software UNO offered a commercial port for OWL 2.0 to several platforms: AIX 3.2.5, <a href="/wiki/Tru64_UNIX" title="Tru64 UNIX">DEC OSF/1</a> AXP, <a href="/wiki/HP-UX" title="HP-UX">HP-UX</a> 9.03, Linux 1.2, Solaris 2.x, <a href="/wiki/SunOS" title="SunOS">Sun OS</a> 4.1.x, and SVR4 for x86. It was called WM_MOTIF.<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>In 1995, Borland C++ 4.5 with OWL 2.5 was released. As it was released before <a href="/wiki/Windows_95" title="Windows 95">Windows 95</a>, Borland promised a free upgrade for any incompatibility present in the final Windows version. In August 1995, Microsoft launched Windows 95 and <a href="/wiki/Visual_Studio" title="Visual Studio">Visual Studio</a> 4.0. By then, Visual Studio had already eclipsed Borland C++ in shipments, and it was clear that OWL was losing ground to MFC. </p><p>In 1996, Borland released Borland C++ 5 for Windows. This version included OWL 5, a major revamp of the library. While OWL 5 received a minor update with the release of Borland C++ 5.02 a little later, version 5 would end up as the final version of OWL by Borland. </p><p>In 1997, Borland released <a href="/wiki/C%2B%2BBuilder" title="C++Builder">C++Builder</a> and deprecated Borland C++. OWL was included on the <i>Companion CD</i> that shipped with C++Builder, but Borland ended maintenance and further development of the library. </p><p>In late 1999, Borland stopped selling Borland C++ and OWL. </p> <div class="mw-heading mw-heading2"><h2 id="OWLNext">OWLNext</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Object_Windows_Library&action=edit&section=2" title="Edit section: OWLNext"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Shortly after Borland ended the development of OWL, maintenance was taken over by a group of users led by Yura Bidus. This effort evolved into the OWLNext<sup id="cite_ref-OWLNext_1-1" class="reference"><a href="#cite_note-OWLNext-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Open-source_software" title="Open-source software">open-source</a> project currently hosted at the <a href="/wiki/SourceForge" title="SourceForge">SourceForge</a> site. OWLNext is a modern update and extension of OWL with support for the latest Windows versions and modern C++ compilers from Microsoft and <a href="/wiki/Embarcadero_Technologies" title="Embarcadero Technologies">Embarcadero Technologies</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Shipped_releases">Shipped releases</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Object_Windows_Library&action=edit&section=3" title="Edit section: Shipped releases"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th>Product version </th> <th>OWL version </th></tr> <tr> <td>Borland C/C++ 3.0 </td> <td>OWL 1.0 </td></tr> <tr> <td>Borland C/C++ 2.0 for OS/2 </td> <td>OWL 2.0 </td></tr> <tr> <td>Borland C++ 4.0x </td> <td>OWL 2.0 </td></tr> <tr> <td>Borland C++ 4.5x </td> <td>OWL 2.5 </td></tr> <tr> <td>Borland C++ 5.0x </td> <td>OWL 5.0 </td></tr> <tr> <td>Borland C++Builder 4.0 </td> <td>OWL 5.0 </td></tr> <tr> <td>Borland C++Builder 5.0 </td> <td>OWL 5.0 </td></tr> <tr> <td>CodeGear C++Builder 2007 </td> <td>OWLNext 6.20 </td></tr> <tr> <td>Embarcadero C++Builder XE </td> <td>OWLNext 6.30 </td></tr> <tr> <td>Embarcadero C++Builder XE2 </td> <td>OWLNext 6.32 </td></tr> </tbody></table> <p>Later versions of OWLNext have been released through SourceForge. </p> <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=Object_Windows_Library&action=edit&section=4" 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"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-OWLNext-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-OWLNext_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-OWLNext_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">OWLNext <a rel="nofollow" class="external free" href="http://sourceforge.net/p/owlnext">http://sourceforge.net/p/owlnext</a></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">Morgan B. Adair (1994) "<a rel="nofollow" class="external text" href="http://support.novell.com/techcenter/articles/dnd19940502.html">The AppWare Foundation: An Overview</a>"</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">Software UNO Ltd (1997) "<a rel="nofollow" class="external text" href="http://softwareuno.com/products/index.htm">Software UNO Products and Services</a>"</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Object_Windows_Library&action=edit&section=5" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ol><li><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 id="CITEREFNeward1998" class="citation book cs1">Neward, Ted (1998). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/advancedowl50pow00newa"><i>Advanced OWL 5.0: Power Tools for OWL Programmers</i></a></span>. Manning. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-884777-46-5" title="Special:BookSources/1-884777-46-5"><bdi>1-884777-46-5</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Advanced+OWL+5.0%3A+Power+Tools+for+OWL+Programmers&rft.pub=Manning&rft.date=1998&rft.isbn=1-884777-46-5&rft.aulast=Neward&rft.aufirst=Ted&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fadvancedowl50pow00newa&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWalnum1994" class="citation book cs1">Walnum, Clayton (1994). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/borlandc4xtipstr0000waln"><i>Borland C++ 4.x Tips, Tricks and Traps</i></a></span>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-56529-895-0" title="Special:BookSources/1-56529-895-0"><bdi>1-56529-895-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Borland+C%2B%2B+4.x+Tips%2C+Tricks+and+Traps&rft.date=1994&rft.isbn=1-56529-895-0&rft.aulast=Walnum&rft.aufirst=Clayton&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fborlandc4xtipstr0000waln&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFaison1995" class="citation book cs1">Faison, Ted (1995). <i>Borland C++ 4.5 Object-Oriented Programming</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-672-30605-0" title="Special:BookSources/0-672-30605-0"><bdi>0-672-30605-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Borland+C%2B%2B+4.5+Object-Oriented+Programming&rft.date=1995&rft.isbn=0-672-30605-0&rft.aulast=Faison&rft.aufirst=Ted&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><i>Borland C++ 5.0 Programming Starter Kit Deluxe</i>. Pearson Software. June 2002. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-57595-430-3" title="Special:BookSources/1-57595-430-3"><bdi>1-57595-430-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Borland+C%2B%2B+5.0+Programming+Starter+Kit+Deluxe&rft.pub=Pearson+Software&rft.date=2002-06&rft.isbn=1-57595-430-3&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFaison" class="citation book cs1">Faison, Ted. <i>Borland C++ Object Oriented Programs</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-672-30775-1" title="Special:BookSources/978-0-672-30775-1"><bdi>978-0-672-30775-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Borland+C%2B%2B+Object+Oriented+Programs&rft.isbn=978-0-672-30775-1&rft.aulast=Faison&rft.aufirst=Ted&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNeward1998" class="citation book cs1">Neward, Ted (1998). <i>Core OWL 5.0: OWL Internals for Advanced</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-884777-50-3" title="Special:BookSources/1-884777-50-3"><bdi>1-884777-50-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Core+OWL+5.0%3A+OWL+Internals+for+Advanced&rft.date=1998&rft.isbn=1-884777-50-3&rft.aulast=Neward&rft.aufirst=Ted&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFaison" class="citation book cs1">Faison, Ted. <i>Inside Object Windows Library</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-672-30219-0" title="Special:BookSources/978-0-672-30219-0"><bdi>978-0-672-30219-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Inside+Object+Windows+Library&rft.isbn=978-0-672-30219-0&rft.aulast=Faison&rft.aufirst=Ted&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSwan1995" class="citation book cs1">Swan, Tom (1995). <i>Mastering Borland C++ 4.5</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-672-30546-1" title="Special:BookSources/0-672-30546-1"><bdi>0-672-30546-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Mastering+Borland+C%2B%2B+4.5&rft.date=1995&rft.isbn=0-672-30546-1&rft.aulast=Swan&rft.aufirst=Tom&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBroquard1993" class="citation book cs1">Broquard, Victor E. (20 May 1993). <i>Object Windows 2.0 Programming</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-553-37120-8" title="Special:BookSources/978-0-553-37120-8"><bdi>978-0-553-37120-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Object+Windows+2.0+Programming&rft.date=1993-05-20&rft.isbn=978-0-553-37120-8&rft.aulast=Broquard&rft.aufirst=Victor+E.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBroquard1997" class="citation book cs1">Broquard, Victor E. (1997). <i>Programming for OWL for Windows 95</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-13-492273-7" title="Special:BookSources/978-0-13-492273-7"><bdi>978-0-13-492273-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Programming+for+OWL+for+Windows+95&rft.date=1997&rft.isbn=978-0-13-492273-7&rft.aulast=Broquard&rft.aufirst=Victor+E.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSpencer1995" class="citation book cs1">Spencer, Ian (1995). <i>Teach yourself OWL Programming in 21 days</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-672-30600-X" title="Special:BookSources/0-672-30600-X"><bdi>0-672-30600-X</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Teach+yourself+OWL+Programming+in+21+days&rft.date=1995&rft.isbn=0-672-30600-X&rft.aulast=Spencer&rft.aufirst=Ian&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHeiny1994" class="citation book cs1">Heiny, Loren (10 October 1994). <i>Windows Graphic Programming with Borland C++</i>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-471-30930-3" title="Special:BookSources/0-471-30930-3"><bdi>0-471-30930-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Windows+Graphic+Programming+with+Borland+C%2B%2B&rft.date=1994-10-10&rft.isbn=0-471-30930-3&rft.aulast=Heiny&rft.aufirst=Loren&rfr_id=info%3Asid%2Fen.wikipedia.org%3AObject+Windows+Library" class="Z3988"></span></li></ol> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Object_Windows_Library&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://sourceforge.net/p/owlnext/wiki/">Official website</a></span></span> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q994371#P856" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></li> <li><a rel="nofollow" class="external text" href="http://cc.embarcadero.com/partners/bcb5/exclusive/object_windows_library/index.html">OWL source code from Embarcadero</a></li> <li><a rel="nofollow" class="external text" href="http://cc.embarcadero.com/partners/cppbuilder2007/owlnext/owlnext/index.html">OWLNext 6.20 from Embarcadero</a></li> <li><a rel="nofollow" class="external text" href="http://cc.embarcadero.com/item/27976">OWLNext 6.30 from Embarcadero</a></li></ul> <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:" · 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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 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language family"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Pascal_programming_language_family576" 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 class="mw-selflink selflink">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 href="/wiki/Visual_Component_Library" title="Visual Component Library">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_toolkits573" 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_toolkits573" 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="CLI38" 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 class="mw-selflink selflink">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 href="/wiki/Visual_Component_Library" title="Visual Component Library">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 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