files/it/web/api/canvasrenderingcontext2d/canvas/index.html


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---
title: CanvasRenderingContext2D.canvas
slug: Web/API/CanvasRenderingContext2D/canvas
translation_of: Web/API/CanvasRenderingContext2D/canvas
---
<div>{{APIRef}}</div>

<p>La proprietà <code><strong>CanvasRenderingContext2D</strong></code><strong><code><span>.canvas</span></code></strong> è un riferimento di sola lettura verso il canvas {{domxref("HTMLCanvasElement")}} che contiene il <code>context</code> corrente. Può essere {{jsxref("null")}} se non vi è un elemento {{HTMLElement("canvas")}} associato.</p>

<h2 id="Syntax" name="Syntax">Sintassi</h2>

<pre class="syntaxbox"><var><em>ctx</em></var>.canvas;</pre>

<h2 id="Esempi">Esempi</h2>

<p>Dato il seguente elmento  {{HTMLElement("canvas")}}:</p>

<pre class="brush: html">&lt;canvas id="canvas"&gt;&lt;/canvas&gt;
</pre>

<p>È possibile ottenere un riferimento all'elemento canvas da cui è ottenuto questo <code>CanvasRenderingContext2D </code>utilizzando la property <code>canvas:</code></p>

<pre class="brush: js">var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
ctx.canvas // HTMLCanvasElement
</pre>

<h2 id="Specifiche">Specifiche</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specifica</th>
   <th scope="col">Stato</th>
   <th scope="col">Commenti</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-canvas", "CanvasRenderingContext2D.canvas")}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="Compatibilità_Browser">Compatibilità Browser</h2>

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

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Caratteristica</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Supporto base</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Caratteristica</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>Supporto base</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_Also" name="See_Also">Vedi anche</h2>

<ul>
 <li>L'interfaccia che la definisce, {{domxref("CanvasRenderingContext2D")}}.</li>
</ul>