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---
title: Element.onfullscreenerror
slug: Web/API/Element/onfullscreenerror
translation_of: Web/API/Element/onfullscreenerror
---
<div>{{ApiRef("Fullscreen API")}}</div>
<p><span class="seoSummary">{{domxref("Element")}} 接口的 <code><strong>onfullscreenerror</strong></code> 属性是在{{domxref("Element")}} 过渡到或退出全屏模式发生错误后处理事件{{event("fullscreenerror")}}的事件处理程序。</span></p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox"><var>targetElement</var>.onfullscreenerror = <var>fullscreenErrorHandler</var>;
</pre>
<h3 id="值">值</h3>
<p>一个处理事件{{event("fullscreenerror")}}的事件处理程序.</p>
<h2 id="示例">示例</h2>
<p>本示例尝试不从用户发起的事件(如点击事件{{event("click")}}或键盘事件{{event("keypress")}})处理程序来触发全屏，由于全屏模式只允许由用户主动输入触发，因此该操作会发生错误，从而导致<span class="seoSummary">{{domxref("Element")}}会</span>触发{{event("fullscreenerror")}}事件传递给错误处理程序</p>
<pre class="brush: js">let elem = document.querySelector("video")}}
elem.onfullscreenerror = function ( event ) {
displayWarning("Unable to switch into full-screen mode.");
};
//....
elem.requestFullscreen();</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName("Fullscreen", "#dom-element-onfullscreenerror", "onfullscreenerror")}}</td>
<td>{{Spec2("HTML WHATWG")}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("api.Element.onfullscreenerror")}}</p>
<h2 id="其他">其他</h2>
<ul>
<li><a href="/en-US/docs/Web/API/Fullscreen_API">Fullscreen API </a></li>
<li><a href="/en-US/docs/Web/API/Fullscreen_API/Guide">Guide to the Fullscreen API</a></li>
<li>{{event("fullscreenerror")}}</li>
<li>{{domxref("Element.onfullscreenchange")}}</li>
<li>{{domxref("Document.onfullscreenerror")}}</li>
</ul>
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