The WebGLRenderingContext.canvas
property is a read-only reference to the HTMLCanvasElement
or OffscreenCanvas
object that is associated with the context. It might be null
if it is not associated with a <canvas>
element or an OffscreenCanvas
object.
Syntax
gl.canvas;
Return value
Either a HTMLCanvasElement
or OffscreenCanvas
object or null
.
Examples
Canvas element
Given this <canvas>
element:
<canvas id="canvas"></canvas>
You can get back a reference to it from the WebGLRenderingContext
using the canvas
property:
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
gl.canvas; // HTMLCanvasElement
Offscreen canvas
Example using the experimental OffscreenCanvas
object.
var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext('webgl');
gl.canvas; // OffscreenCanvas
Specifications
Specification | Status | Comment |
WebGL 1.0The definition of 'WebGLRenderingContext.canvas' in that specification. | Recommendation | Initial definition. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
canvas
|
Chrome
Full support 9 |
Edge
Full support 12 |
Firefox
Full support 4 |
IE
Full support 11 |
Opera
Full support 12 |
Safari
Full support 5.1 |
WebView Android
Full support Yes |
Chrome Android
Full support 25 |
Firefox Android
Full support Yes |
Opera Android
Full support 12 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
|
Chrome
No support No |
Edge
No support No |
Firefox Full support 44 Full support 44 Disabled' From version 44: this feature is behind the |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
WebGLRenderingContext.canvas by Mozilla Contributors is licensed under CC-BY-SA 2.5.