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+---
+title: CanvasRenderingContext2D.removeHitRegion()
+slug: Web/API/CanvasRenderingContext2D/removeHitRegion
+translation_of: Web/API/CanvasRenderingContext2D/removeHitRegion
+---
+<div>{{APIRef}} {{SeeCompatTable}}</div>
+
+<p>Canvas 2D APIの<code><strong>CanvasRenderingContext2D</strong></code><strong><code>.removeHitRegion()</code></strong> メソッドは、canvasから与えられたヒット領域を削除します。</p>
+
+<h2 id="構文">構文</h2>
+
+<pre class="syntaxbox">void <var><em>ctx</em>.removeHitRegion(id);</var>
+</pre>
+
+<h3 id="パラメータ">パラメータ</h3>
+
+<dl>
+ <dt>id</dt>
+ <dd>削除する領域の<code>id</code>をあらわす{{domxref("DOMString")}}。</dd>
+</dl>
+
+<h2 id="例">例</h2>
+
+<h3 id="removeHitRegionメソッドを使う"><code>removeHitRegion</code>メソッドを使う</h3>
+
+<p>これは、<code>removeHitRegion</code>を使った簡単なコードです。</p>
+
+<h4 id="HTML">HTML</h4>
+
+<pre class="brush: html">&lt;canvas id="canvas"&gt;&lt;/canvas&gt;
+</pre>
+
+<h4 id="JavaScript">JavaScript</h4>
+
+<pre class="brush: js; highlight:[8]">var canvas = document.getElementById("canvas");
+var ctx = canvas.getContext("2d");
+
+// ヒット領域を指定
+ctx.addHitRegion({id: "eyes"});
+
+// canvasからヒット領域を削除
+ctx.removeHitRegion("eyes");
+</pre>
+
+<h2 id="仕様">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">仕様</th>
+ <th scope="col">策定状況</th>
+ <th scope="col">コメント</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-removehitregion", "CanvasRenderingContext2D.removeHitRegion")}}</td>
+ <td>{{Spec2('HTML WHATWG')}}</td>
+ <td></td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="ブラウザー実装状況">ブラウザー実装状況</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>機能</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>基本サポート</td>
+ <td>{{CompatVersionUnknown}}[1]</td>
+ <td>{{CompatGeckoDesktop(30)}} [2]</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>機能</th>
+ <th>Android</th>
+ <th>Chrome for Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>基本サポート</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatGeckoMobile(30)}} [2]</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h3 id="注記">注記</h3>
+
+<ul>
+ <li>[1] この機能はフラグを変更しないと動作しません。有効にするには<code>ExperimentalCanvasFeatures</code>フラグを<code>true</code>に設定してください。</li>
+ <li>[2] この機能は設定を変更しないと動作しません。about:configで<code>canvas.hitregions.enabled</code>を<code>true</code>に設定してください。</li>
+</ul>
+
+<h2 id="関連情報">関連情報</h2>
+
+<ul>
+ <li>{{domxref("CanvasRenderingContext2D.addHitRegion()")}} {{experimental_inline}}</li>
+ <li>{{domxref("CanvasRenderingContext2D.clearHitRegions()")}} {{experimental_inline}}</li>
+</ul>