---
title: Document.pointerLockElement
slug: Web/API/Document/pointerLockElement
translation_of: Web/API/DocumentOrShadowRoot/pointerLockElement
original_slug: Web/API/DocumentOrShadowRoot/pointerLockElement
---
<div>{{APIRef("DOM")}}</div>

<p><code>pointerLockElement 特性规定了如在鼠标事件中当目标被锁定时的元素集和。如果指针处于锁定等待中、指针没有被锁定，或者目标在另外一个文档中这几种情况，返回的值null。</code></p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">var element = document.pointerLockElement;
</pre>

<h3 id="返回值">返回值</h3>

<p>An {{domxref("Element")}} or <code>null</code>.</p>

<h2 id="特性">特性</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('Pointer Lock','l#extensions-to-the-document-interface','Document')}}</td>
   <td>{{Spec2('Pointer Lock')}}</td>
   <td>Extend the <code>Document</code> interface</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容</h2>

<p>{{ CompatibilityTable() }}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{ CompatVersionUnknown() }} {{property_prefix("webkit")}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{ CompatVersionUnknown() }} {{property_prefix("moz")}}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatUnknown() }}</td>
  </tr>
  <tr>
   <td>Unprefixed support</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatGeckoDesktop(50)}}</td>
   <td> </td>
   <td> </td>
   <td> </td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatUnknown() }}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="相关链接">相关链接</h2>

<ul>
 <li>{{ domxref("Document.exitPointerLock()") }}</li>
 <li>{{ domxref("Element.requestPointerLock()") }}</li>
 <li><a href="/en-US/docs/WebAPI/Pointer_Lock">Pointer Lock</a></li>
</ul>