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class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#sicherheitsüberlegungen">Sicherheitsüberlegungen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/de/docs/Web/API/Clipboard_API">Clipboard API</a></li><li class="section"><a href="/de/docs/Web/API/Clipboard"><code>Clipboard</code></a></li><li class="toggle"><details open=""><summary>Instanzmethoden</summary><ol><li><a href="/de/docs/Web/API/Clipboard/read"><code>read()</code></a></li><li><a href="/de/docs/Web/API/Clipboard/readText"><code>readText()</code></a></li><li><em><code>write()</code> </em></li><li><a href="/de/docs/Web/API/Clipboard/writeText"><code>writeText()</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Vererbung</summary><ol><li><a href="/de/docs/Web/API/EventTarget"><code>EventTarget</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Verwandte Seiten für Clipboard API</summary><ol><li><a href="/de/docs/Web/API/ClipboardEvent"><code>ClipboardEvent</code></a></li><li><a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a></li><li><a href="/de/docs/Web/API/Navigator/clipboard"><code>Navigator.clipboard</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#sicherheitsüberlegungen">Sicherheitsüberlegungen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="de"><header><h1>Clipboard: write()-Methode</h1><details class="baseline-indicator low"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">2024</span></h2><div class="pill">Newly available</div><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>Since June 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.</p><ul><li><a href="/de/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#browser-kompatibilität" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fde%2Fdocs%2FWeb%2FAPI%2FClipboard%2Fwrite&level=low" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><div class="notecard secure"><p><strong>Sicherer Kontext:</strong> Diese Funktion ist nur in <a href="/de/docs/Web/Security/Secure_Contexts">sicheren Kontexten</a> (HTTPS) in einigen oder allen <a href="#browser-kompatibilität">unterstützenden Browsern</a> verfügbar.</p></div> <p> Die <strong><code>write()</code></strong> Methode des <a href="/de/docs/Web/API/Clipboard"><code>Clipboard</code></a> Interfaces schreibt beliebige Daten in die Zwischenablage, wie z.B. Bilder, und erfüllt das zurückgegebene <a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Promise"><code>Promise</code></a>, sobald der Vorgang abgeschlossen ist. Dies kann verwendet werden, um Ausschneiden- und Kopieren-Funktionen zu implementieren. </p> <p> Die Methode kann theoretisch beliebige Daten schreiben (im Gegensatz zur <a href="/de/docs/Web/API/Clipboard/writeText"><code>writeText()</code></a>, die nur Text schreiben kann). Browser unterstützen üblicherweise das Schreiben von Text, HTML und PNG-Bilddaten – siehe <a href="#browser-kompatibilit%C3%A4t">Browser-Kompatibilität</a> für weitere Informationen. </p></div><section aria-labelledby="syntax"><h2 id="syntax"><a href="#syntax">Syntax</a></h2><div class="section-content"><div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>write(data) </code></pre></div></div></section><section aria-labelledby="parameter"><h3 id="parameter"><a href="#parameter">Parameter</a></h3><div class="section-content"><dl> <dt id="data"><a href="#data"><code>data</code></a></dt> <dd> <p>Ein Array von <a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a> Objekten, die die Daten enthalten, die in die Zwischenablage geschrieben werden sollen.</p> </dd> </dl></div></section><section aria-labelledby="rückgabewert"><h3 id="rückgabewert"><a href="#rückgabewert">Rückgabewert</a></h3><div class="section-content"><p> Ein <a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Promise"><code>Promise</code></a>, das aufgelöst wird, wenn die Daten in die Zwischenablage geschrieben wurden. Beachten Sie, dass, wenn das zugrunde liegende Betriebssystem das Speichern mehrerer nativer Zwischenablage-Elemente in der Systemzwischenablage nicht unterstützt, nur das erste <a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a> im Array gespeichert wird. </p> <p>Das Versprechen wird abgelehnt, wenn es der Zwischenablage nicht gelingt, in die Zwischenablage zu schreiben.</p></div></section><section aria-labelledby="ausnahmen"><h3 id="ausnahmen"><a href="#ausnahmen">Ausnahmen</a></h3><div class="section-content"><dl> <dt id="notallowederror"><a href="#notallowederror"><code>NotAllowedError</code></a> <a href="/de/docs/Web/API/DOMException"><code>DOMException</code></a></dt> <dd> <p>Wird ausgelöst, wenn das Schreiben in die Zwischenablage nicht erlaubt ist.</p> </dd> </dl></div></section><section aria-labelledby="sicherheitsüberlegungen"><h2 id="sicherheitsüberlegungen"><a href="#sicherheitsüberlegungen">Sicherheitsüberlegungen</a></h2><div class="section-content"><p>Das Schreiben in die Zwischenablage kann nur in einem <a href="/de/docs/Web/Security/Secure_Contexts">sicheren Kontext</a> durchgeführt werden.</p> <p>Zusätzliche Sicherheitsanforderungen werden im Abschnitt <a href="/de/docs/Web/API/Clipboard_API#security_considerations">Sicherheitsüberlegungen</a> des API-Übersichtsthemas behandelt.</p></div></section><section aria-labelledby="beispiele"><h2 id="beispiele"><a href="#beispiele">Beispiele</a></h2><div class="section-content"></div></section><section aria-labelledby="text_in_die_zwischenablage_schreiben"><h3 id="text_in_die_zwischenablage_schreiben"><a href="#text_in_die_zwischenablage_schreiben">Text in die Zwischenablage schreiben</a></h3><div class="section-content"><p> Diese Beispiel-Funktion ersetzt den aktuellen Inhalt der Zwischenablage mit einem angegebenen String, wenn eine Taste gedrückt wird. Beachten Sie, dass Sie für diesen speziellen Fall ebenso gut <code>Clipboard.writeText()</code> verwenden könnten. </p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>button.addEventListener("click", () => setClipboard("<empty clipboard>")); async function setClipboard(text) { const type = "text/plain"; const blob = new Blob([text], { type }); const data = [new ClipboardItem({ [type]: blob })]; await navigator.clipboard.write(data); } </code></pre></div> <p> Die <code>setClipboard()</code> Methode beginnt mit der Erstellung eines neuen <a href="/de/docs/Web/API/Blob"><code>Blob</code></a> Objekts. Dieses Objekt wird benötigt, um ein <a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a> Objekt zu konstruieren, das an die Zwischenablage gesendet wird. Der <a href="/de/docs/Web/API/Blob"><code>Blob</code></a> Konstruktor nimmt den Inhalt, den wir kopieren möchten, und seinen Typ entgegen. Dieses <a href="/de/docs/Web/API/Blob"><code>Blob</code></a> Objekt kann aus vielen Quellen abgeleitet werden, z. B. einem <a href="/de/docs/Web/API/HTMLCanvasElement">Canvas</a>. </p> <p> Als nächstes erstellen wir ein neues <a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a> Objekt, in das der Blob zum Senden an die Zwischenablage eingefügt wird. Der Schlüssel des an den <a href="/de/docs/Web/API/ClipboardItem"><code>ClipboardItem</code></a> Konstruktor übergebenen Objekts gibt den Inhaltstyp an, der Wert gibt den Inhalt an. Dann wird <code>write()</code> mit <code>await</code> aufgerufen. Ein <code>try..catch</code> Block könnte verwendet werden, um etwaige Fehler beim Schreiben der Daten abzufangen. </p></div></section><section aria-labelledby="canvas-inhalte_in_die_zwischenablage_schreiben"><h3 id="canvas-inhalte_in_die_zwischenablage_schreiben"><a href="#canvas-inhalte_in_die_zwischenablage_schreiben">Canvas-Inhalte in die Zwischenablage schreiben</a></h3><div class="section-content"><p> Dieses Beispiel zeichnet ein blaues Rechteck auf das Canvas. Sie können auf das Rechteck klicken, um den Inhalt des Canvas als Bild in die Zwischenablage zu kopieren, und dann ein anderes Element auswählen und den Inhalt aus der Zwischenablage einfügen. </p> <h4 id="html">HTML</h4> <p>Das HTML definiert nur unser <code><canvas></code> Element und das <code><div></code> Element mit der ID <code>target</code>, wo das Canvas-Bild eingefügt wird.</p> <div class="code-example"><div class="example-header"><span class="language-name">html</span></div><pre class="brush: html notranslate"><code><canvas id="canvas" width="100" height="100"></canvas> <div id="target">Paste here.</div> </code></pre></div> <div class="code-example"><pre class="brush: html hidden notranslate"><code><pre id="log"></pre> </code></pre></div> <div class="code-example"><pre class="brush: css hidden notranslate"><code>#log { height: 60px; overflow: scroll; padding: 0.5rem; border: 1px solid black; } </code></pre></div> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>const logElement = document.querySelector("#log"); function log(text) { logElement.innerText = `${logElement.innerText}${text}\n`; logElement.scrollTop = logElement.scrollHeight; } </code></pre></div> <h4 id="javascript">JavaScript</h4> <p> Zuerst definieren wir eine <code>async</code> Funktion, um ein Canvas in einen Blob zu kopieren. Dies fasst die alte Callback-basierte <a href="/de/docs/Web/API/HTMLCanvasElement/toBlob"><code>HTMLCanvasElement.toBlob()</code></a> Methode in eine intuitivere, auf <code>Promise</code> basierende Funktion zusammen. </p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>// Async/await method replacing toBlob() callback async function getBlobFromCanvas(canvas) { return new Promise((resolve, reject) => { canvas.toBlob((blob) => { if (blob) { resolve(blob); } else { reject(new Error("Canvas toBlob failed")); } }); }); } </code></pre></div> <p>Als nächstes richten wir unser Canvas ein und fügen einen Ereignislistener für das <code>click</code> Ereignis hinzu.</p> <p> Wenn Sie auf das blaue Rechteck klicken, überprüft der Code zuerst, ob die Zwischenablage Daten vom Typ <code>"image/png"</code> unterstützt. Falls ja, wird das Canvas mit dem angezeigten Rechteck in einen Blob kopiert, und dann wird der Blob zu einem <code>ClipboardItem</code> hinzugefügt und in die Zwischenablage geschrieben. </p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>const canvas = document.getElementById("canvas"); // Set up canvas const ctx = canvas.getContext("2d"); ctx.fillStyle = "cornflowerblue"; ctx.fillRect(0, 0, 100, 100); canvas.addEventListener("click", copyCanvasContentsToClipboard); const target = document.getElementById("target"); async function copyCanvasContentsToClipboard() { if (ClipboardItem.supports("image/png")) { // Copy canvas to blob try { const blob = await getBlobFromCanvas(canvas); // Create ClipboardItem with blob and it's type, and add to an array const data = [new ClipboardItem({ [blob.type]: blob })]; // Write the data to the clipboard await navigator.clipboard.write(data); log("Copied"); } catch (error) { log(error); } } else { log("image/png is not supported"); } } </code></pre></div> <p> Beachten Sie, dass die Unterstützung von PNG-Dateien in der Zwischenablage Teil der Spezifikation ist, sodass wir die Überprüfung mit <a href="/de/docs/Web/API/ClipboardItem/supports_static"><code>ClipboardItem.supports()</code></a> oben eigentlich nicht benötigen (sie gibt immer <code>true</code> zurück). Die Überprüfung wäre nützlicher in Fällen, in denen wir einen optionalen Dateityp abrufen oder eine Ressource mit unbekanntem Typ vorab auswählen. </p> <p> Dann definieren wir einen Ereignislistener für <a href="/de/docs/Web/API/Element/paste_event"><code>paste</code> Ereignisse</a> auf einem Element, wo wir die Zwischenablageinhalte als Bild anzeigen wollen. Die <a href="/de/docs/Web/API/FileReader">FileReader API</a> ermöglicht es uns, den Blob mit der Methode <a href="/de/docs/Web/API/FileReader/readAsDataURL"><code>readAsDataUrl</code></a> zu lesen und ein <code><img></code> Element mit den Canvas-Inhalten zu erstellen: </p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>target.addEventListener("paste", (event) => { const items = (event.clipboardData || window.clipboardData).items; const blob = items[0].getAsFile(); const reader = new FileReader(); reader.addEventListener("load", (event) => { const img = new Image(); img.src = event.target.result; target.appendChild(img); }); reader.readAsDataURL(blob); }); </code></pre></div> <div class="code-example"><pre class="brush: css hidden notranslate"><code>body { font-family: sans-serif; } #target { border: 2px solid; padding: 1rem; height: 150px; } img { margin: 0.5rem; } </code></pre></div> <h4 id="ergebnis">Ergebnis</h4> <p> Das Ergebnis wird unten gezeigt. Klicken Sie zuerst auf das blaue Quadrat und wählen Sie dann den Text "Paste here" und verwenden Sie die spezifischen Tastenkombinationen Ihres Betriebssystems, um aus der Zwischenablage einzufügen (zum Beispiel <code>Ctrl+V</code> unter Windows). </p><div class="code-example"><div class="example-header"></div><iframe class="sample-code-frame" title="write canvas contents to the clipboard sample" id="frame_write_canvas_contents_to_the_clipboard" height="420" src="about:blank" data-live-path="/de/docs/Web/API/Clipboard/write" data-live-id="write_canvas_contents_to_the_clipboard" allow="clipboard-write" sandbox="allow-same-origin allow-scripts" loading="lazy"></iframe></div></div></section><h2 id="spezifikationen"><a href="#spezifikationen">Spezifikationen</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://w3c.github.io/clipboard-apis/#dom-clipboard-write">Clipboard API and events <br/><small># dom-clipboard-write</small></a></td></tr></tbody></table><h2 id="browser-kompatibilität"><a href="#browser-kompatibilität">Browser-Kompatibilität</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="siehe_auch"><h2 id="siehe_auch"><a href="#siehe_auch">Siehe auch</a></h2><div class="section-content"><ul> <li><a href="/de/docs/Web/API/Clipboard_API">Clipboard API</a></li> <li><a href="https://web.dev/articles/async-clipboard" class="external" target="_blank">Bildunterstützung für Async Clipboard Artikel</a></li> <li><a href="/de/docs/Web/API/Clipboard/writeText"><code>Clipboard.writeText()</code></a></li> <li><a href="/de/docs/Web/API/Clipboard/read"><code>Clipboard.read()</code></a></li> <li><a href="/de/docs/Web/API/Clipboard/readText"><code>Clipboard.readText()</code></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 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Content available under <a href="/de/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/de/docs/Web/API/Clipboard/write","doc":{"isMarkdown":true,"isTranslated":true,"isActive":true,"flaws":{},"title":"Clipboard: write()-Methode","mdn_url":"/de/docs/Web/API/Clipboard/write","locale":"de","native":"Deutsch","browserCompat":["api.Clipboard.write"],"baseline":{"baseline":"low","baseline_low_date":"2024-06-11","support":{"chrome":"76","chrome_android":"76","edge":"79","firefox":"127","firefox_android":"127","safari":"13.1","safari_ios":"13.4"}},"sidebarHTML":"<ol><li class=\"section\"><a href=\"/de/docs/Web/API/Clipboard_API\">Clipboard API</a></li><li class=\"section\"><a href=\"/de/docs/Web/API/Clipboard\"><code>Clipboard</code></a></li><li class=\"toggle\"><details open=\"\"><summary>Instanzmethoden</summary><ol><li><a href=\"/de/docs/Web/API/Clipboard/read\"><code>read()</code></a></li><li><a href=\"/de/docs/Web/API/Clipboard/readText\"><code>readText()</code></a></li><li><em><code>write()</code> </em></li><li><a href=\"/de/docs/Web/API/Clipboard/writeText\"><code>writeText()</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Vererbung</summary><ol><li><a href=\"/de/docs/Web/API/EventTarget\"><code>EventTarget</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Verwandte Seiten für Clipboard API</summary><ol><li><a href=\"/de/docs/Web/API/ClipboardEvent\"><code>ClipboardEvent</code></a></li><li><a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a></li><li><a href=\"/de/docs/Web/API/Navigator/clipboard\"><code>Navigator.clipboard</code></a></li></ol></details></li></ol>","sidebarMacro":"APIRef","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<div class=\"notecard secure\"><p><strong>Sicherer Kontext:</strong> Diese Funktion ist nur in <a href=\"/de/docs/Web/Security/Secure_Contexts\">sicheren Kontexten</a> (HTTPS) in einigen oder allen <a href=\"#browser-kompatibilität\">unterstützenden Browsern</a> verfügbar.</p></div>\n<p>\n Die <strong><code>write()</code></strong> Methode des <a href=\"/de/docs/Web/API/Clipboard\"><code>Clipboard</code></a> Interfaces schreibt beliebige Daten in die Zwischenablage, wie z.B. Bilder, und erfüllt das zurückgegebene <a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Promise\"><code>Promise</code></a>, sobald der Vorgang abgeschlossen ist.\n Dies kann verwendet werden, um Ausschneiden- und Kopieren-Funktionen zu implementieren.\n</p>\n<p>\n Die Methode kann theoretisch beliebige Daten schreiben (im Gegensatz zur <a href=\"/de/docs/Web/API/Clipboard/writeText\"><code>writeText()</code></a>, die nur Text schreiben kann).\n Browser unterstützen üblicherweise das Schreiben von Text, HTML und PNG-Bilddaten – siehe <a href=\"#browser-kompatibilit%C3%A4t\">Browser-Kompatibilität</a> für weitere Informationen.\n</p>"}},{"type":"prose","value":{"id":"syntax","title":"Syntax","isH3":false,"content":"<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>write(data)\n</code></pre></div>"}},{"type":"prose","value":{"id":"parameter","title":"Parameter","isH3":true,"content":"<dl>\n <dt id=\"data\"><a href=\"#data\"><code>data</code></a></dt>\n <dd>\n <p>Ein Array von <a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a> Objekten, die die Daten enthalten, die in die Zwischenablage geschrieben werden sollen.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"rückgabewert","title":"Rückgabewert","isH3":true,"content":"<p>\n Ein <a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Promise\"><code>Promise</code></a>, das aufgelöst wird, wenn die Daten in die Zwischenablage geschrieben wurden.\n Beachten Sie, dass, wenn das zugrunde liegende Betriebssystem das Speichern mehrerer nativer Zwischenablage-Elemente in der Systemzwischenablage nicht unterstützt, nur das erste <a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a> im Array gespeichert wird.\n</p>\n<p>Das Versprechen wird abgelehnt, wenn es der Zwischenablage nicht gelingt, in die Zwischenablage zu schreiben.</p>"}},{"type":"prose","value":{"id":"ausnahmen","title":"Ausnahmen","isH3":true,"content":"<dl>\n <dt id=\"notallowederror\"><a href=\"#notallowederror\"><code>NotAllowedError</code></a> <a href=\"/de/docs/Web/API/DOMException\"><code>DOMException</code></a></dt>\n <dd>\n <p>Wird ausgelöst, wenn das Schreiben in die Zwischenablage nicht erlaubt ist.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"sicherheitsüberlegungen","title":"Sicherheitsüberlegungen","isH3":false,"content":"<p>Das Schreiben in die Zwischenablage kann nur in einem <a href=\"/de/docs/Web/Security/Secure_Contexts\">sicheren Kontext</a> durchgeführt werden.</p>\n<p>Zusätzliche Sicherheitsanforderungen werden im Abschnitt <a href=\"/de/docs/Web/API/Clipboard_API#security_considerations\">Sicherheitsüberlegungen</a> des API-Übersichtsthemas behandelt.</p>"}},{"type":"prose","value":{"id":"beispiele","title":"Beispiele","isH3":false,"content":""}},{"type":"prose","value":{"id":"text_in_die_zwischenablage_schreiben","title":"Text in die Zwischenablage schreiben","isH3":true,"content":"<p>\n Diese Beispiel-Funktion ersetzt den aktuellen Inhalt der Zwischenablage mit einem angegebenen String, wenn eine Taste gedrückt wird.\n Beachten Sie, dass Sie für diesen speziellen Fall ebenso gut <code>Clipboard.writeText()</code> verwenden könnten.\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>button.addEventListener(\"click\", () => setClipboard(\"<empty clipboard>\"));\n\nasync function setClipboard(text) {\n const type = \"text/plain\";\n const blob = new Blob([text], { type });\n const data = [new ClipboardItem({ [type]: blob })];\n await navigator.clipboard.write(data);\n}\n</code></pre></div>\n<p>\n Die <code>setClipboard()</code> Methode beginnt mit der Erstellung eines neuen <a href=\"/de/docs/Web/API/Blob\"><code>Blob</code></a> Objekts.\n Dieses Objekt wird benötigt, um ein <a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a> Objekt zu konstruieren, das an die Zwischenablage gesendet wird.\n Der <a href=\"/de/docs/Web/API/Blob\"><code>Blob</code></a> Konstruktor nimmt den Inhalt, den wir kopieren möchten, und seinen Typ entgegen.\n Dieses <a href=\"/de/docs/Web/API/Blob\"><code>Blob</code></a> Objekt kann aus vielen Quellen abgeleitet werden, z. B. einem <a href=\"/de/docs/Web/API/HTMLCanvasElement\">Canvas</a>.\n</p>\n<p>\n Als nächstes erstellen wir ein neues <a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a> Objekt, in das der Blob zum Senden an die Zwischenablage eingefügt wird.\n Der Schlüssel des an den <a href=\"/de/docs/Web/API/ClipboardItem\"><code>ClipboardItem</code></a> Konstruktor übergebenen Objekts gibt den Inhaltstyp an, der Wert gibt den Inhalt an.\n Dann wird <code>write()</code> mit <code>await</code> aufgerufen.\n Ein <code>try..catch</code> Block könnte verwendet werden, um etwaige Fehler beim Schreiben der Daten abzufangen.\n</p>"}},{"type":"prose","value":{"id":"canvas-inhalte_in_die_zwischenablage_schreiben","title":"Canvas-Inhalte in die Zwischenablage schreiben","isH3":true,"content":"<p>\n Dieses Beispiel zeichnet ein blaues Rechteck auf das Canvas.\n Sie können auf das Rechteck klicken, um den Inhalt des Canvas als Bild in die Zwischenablage zu kopieren, und dann ein anderes Element auswählen und den Inhalt aus der Zwischenablage einfügen.\n</p>\n<h4 id=\"html\">HTML</h4>\n<p>Das HTML definiert nur unser <code><canvas></code> Element und das <code><div></code> Element mit der ID <code>target</code>, wo das Canvas-Bild eingefügt wird.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">html</span></div><pre class=\"brush: html notranslate\"><code><canvas id=\"canvas\" width=\"100\" height=\"100\"></canvas>\n\n<div id=\"target\">Paste here.</div>\n</code></pre></div>\n<div class=\"code-example\"><pre class=\"brush: html hidden notranslate\"><code><pre id=\"log\"></pre>\n</code></pre></div>\n<div class=\"code-example\"><pre class=\"brush: css hidden notranslate\"><code>#log {\n height: 60px;\n overflow: scroll;\n padding: 0.5rem;\n border: 1px solid black;\n}\n</code></pre></div>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>const logElement = document.querySelector(\"#log\");\nfunction log(text) {\n logElement.innerText = `${logElement.innerText}${text}\\n`;\n logElement.scrollTop = logElement.scrollHeight;\n}\n</code></pre></div>\n<h4 id=\"javascript\">JavaScript</h4>\n<p>\n Zuerst definieren wir eine <code>async</code> Funktion, um ein Canvas in einen Blob zu kopieren.\n Dies fasst die alte Callback-basierte <a href=\"/de/docs/Web/API/HTMLCanvasElement/toBlob\"><code>HTMLCanvasElement.toBlob()</code></a> Methode in eine intuitivere, auf <code>Promise</code> basierende Funktion zusammen.\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>// Async/await method replacing toBlob() callback\nasync function getBlobFromCanvas(canvas) {\n return new Promise((resolve, reject) => {\n canvas.toBlob((blob) => {\n if (blob) {\n resolve(blob);\n } else {\n reject(new Error(\"Canvas toBlob failed\"));\n }\n });\n });\n}\n</code></pre></div>\n<p>Als nächstes richten wir unser Canvas ein und fügen einen Ereignislistener für das <code>click</code> Ereignis hinzu.</p>\n<p>\n Wenn Sie auf das blaue Rechteck klicken, überprüft der Code zuerst, ob die Zwischenablage Daten vom Typ <code>\"image/png\"</code> unterstützt.\n Falls ja, wird das Canvas mit dem angezeigten Rechteck in einen Blob kopiert, und dann wird der Blob zu einem <code>ClipboardItem</code> hinzugefügt und in die Zwischenablage geschrieben.\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>const canvas = document.getElementById(\"canvas\");\n\n// Set up canvas\nconst ctx = canvas.getContext(\"2d\");\nctx.fillStyle = \"cornflowerblue\";\nctx.fillRect(0, 0, 100, 100);\n\ncanvas.addEventListener(\"click\", copyCanvasContentsToClipboard);\nconst target = document.getElementById(\"target\");\n\nasync function copyCanvasContentsToClipboard() {\n if (ClipboardItem.supports(\"image/png\")) {\n // Copy canvas to blob\n try {\n const blob = await getBlobFromCanvas(canvas);\n // Create ClipboardItem with blob and it's type, and add to an array\n const data = [new ClipboardItem({ [blob.type]: blob })];\n // Write the data to the clipboard\n await navigator.clipboard.write(data);\n log(\"Copied\");\n } catch (error) {\n log(error);\n }\n } else {\n log(\"image/png is not supported\");\n }\n}\n</code></pre></div>\n<p>\n Beachten Sie, dass die Unterstützung von PNG-Dateien in der Zwischenablage Teil der Spezifikation ist, sodass wir die Überprüfung mit <a href=\"/de/docs/Web/API/ClipboardItem/supports_static\"><code>ClipboardItem.supports()</code></a> oben eigentlich nicht benötigen (sie gibt immer <code>true</code> zurück).\n Die Überprüfung wäre nützlicher in Fällen, in denen wir einen optionalen Dateityp abrufen oder eine Ressource mit unbekanntem Typ vorab auswählen.\n</p>\n<p>\n Dann definieren wir einen Ereignislistener für <a href=\"/de/docs/Web/API/Element/paste_event\"><code>paste</code> Ereignisse</a> auf einem Element, wo wir die Zwischenablageinhalte als Bild anzeigen wollen.\n Die <a href=\"/de/docs/Web/API/FileReader\">FileReader API</a> ermöglicht es uns, den Blob mit der Methode <a href=\"/de/docs/Web/API/FileReader/readAsDataURL\"><code>readAsDataUrl</code></a> zu lesen und ein <code><img></code> Element mit den Canvas-Inhalten zu erstellen:\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>target.addEventListener(\"paste\", (event) => {\n const items = (event.clipboardData || window.clipboardData).items;\n const blob = items[0].getAsFile();\n const reader = new FileReader();\n\n reader.addEventListener(\"load\", (event) => {\n const img = new Image();\n img.src = event.target.result;\n target.appendChild(img);\n });\n\n reader.readAsDataURL(blob);\n});\n</code></pre></div>\n<div class=\"code-example\"><pre class=\"brush: css hidden notranslate\"><code>body {\n font-family: sans-serif;\n}\n#target {\n border: 2px solid;\n padding: 1rem;\n height: 150px;\n}\nimg {\n margin: 0.5rem;\n}\n</code></pre></div>\n<h4 id=\"ergebnis\">Ergebnis</h4>\n<p>\n Das Ergebnis wird unten gezeigt.\n Klicken Sie zuerst auf das blaue Quadrat und wählen Sie dann den Text \"Paste here\" und verwenden Sie die spezifischen Tastenkombinationen Ihres Betriebssystems, um aus der Zwischenablage einzufügen (zum Beispiel <code>Ctrl+V</code> unter Windows).\n</p><div class=\"code-example\"><div class=\"example-header\"></div><iframe class=\"sample-code-frame\" title=\"write canvas contents to the clipboard sample\" id=\"frame_write_canvas_contents_to_the_clipboard\" height=\"420\" src=\"about:blank\" data-live-path=\"/de/docs/Web/API/Clipboard/write\" data-live-id=\"write_canvas_contents_to_the_clipboard\" allow=\"clipboard-write\" sandbox=\"allow-same-origin allow-scripts\" loading=\"lazy\"></iframe></div>"}},{"type":"specifications","value":{"title":"Spezifikationen","id":"spezifikationen","isH3":false,"specifications":[{"bcdSpecificationURL":"https://w3c.github.io/clipboard-apis/#dom-clipboard-write","title":"Clipboard API and events"}],"query":"api.Clipboard.write"}},{"type":"browser_compatibility","value":{"title":"Browser-Kompatibilität","id":"browser-kompatibilität","isH3":false,"query":"api.Clipboard.write"}},{"type":"prose","value":{"id":"siehe_auch","title":"Siehe auch","isH3":false,"content":"<ul>\n <li><a href=\"/de/docs/Web/API/Clipboard_API\">Clipboard API</a></li>\n <li><a href=\"https://web.dev/articles/async-clipboard\" class=\"external\" target=\"_blank\">Bildunterstützung für Async Clipboard Artikel</a></li>\n <li><a href=\"/de/docs/Web/API/Clipboard/writeText\"><code>Clipboard.writeText()</code></a></li>\n <li><a href=\"/de/docs/Web/API/Clipboard/read\"><code>Clipboard.read()</code></a></li>\n <li><a href=\"/de/docs/Web/API/Clipboard/readText\"><code>Clipboard.readText()</code></a></li>\n</ul>"}}],"toc":[{"text":"Syntax","id":"syntax"},{"text":"Sicherheitsüberlegungen","id":"sicherheitsüberlegungen"},{"text":"Beispiele","id":"beispiele"},{"text":"Spezifikationen","id":"spezifikationen"},{"text":"Browser-Kompatibilität","id":"browser-kompatibilität"},{"text":"Siehe auch","id":"siehe_auch"}],"summary":"Die write() Methode des Clipboard Interfaces schreibt beliebige Daten in die Zwischenablage, wie z.B. Bilder, und erfüllt das zurückgegebene Promise, sobald der Vorgang abgeschlossen ist.\n Dies kann verwendet werden, um Ausschneiden- und Kopieren-Funktionen zu implementieren.","popularity":0,"modified":null,"other_translations":[{"locale":"en-US","title":"Clipboard: write() method","native":"English (US)"},{"locale":"fr","title":"Clipboard.write()","native":"Français"},{"locale":"ja","title":"Clipboard.write()","native":"日本語"},{"locale":"zh-CN","title":"Clipboard：write() 方法","native":"中文 (简体)"}],"pageType":"unknown","source":{"folder":"de/web/api/clipboard/write","github_url":"https://github.com/mdn/translated-content/blob/main/files/de/web/api/clipboard/write/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/null","filename":"index.md"},"short_title":"write()","parents":[{"uri":"/de/docs/Web","title":"Web-Technologien für Entwickler"},{"uri":"/de/docs/Web/API","title":"Web APIs"},{"uri":"/de/docs/Web/API/Clipboard","title":"Clipboard"},{"uri":"/de/docs/Web/API/Clipboard/write","title":"write()"}],"pageTitle":"Clipboard: write()-Methode - Web APIs | MDN","noIndexing":false}}</script></body></html>