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The WebContextEvent interface is part of the WebGL API and is an interface for an event that is generated in response to a status change to the WebGL rendering context.
Inheritance
This interface inherits properties and methods from its parent interface, Event
.
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a:hover text { fill: #0095DD; pointer-events: all;}
Properties
This interface inherits properties from its parent interface, Event
.
WebGLContextEvent.statusMessage
- A read-only property containing additional information about the event.
Methods
This interface doesn't define any own methods, but inherits methods from its parent interface, Event
.
Examples
With the help of the WEBGL_lose_context
extension, you can simulate the webglcontextlost
and webglcontextrestored
events:
var canvas = document.getElementById('canvas'); var gl = canvas.getContext('webgl'); canvas.addEventListener('webglcontextlost', function(e) { console.log(e); }, false); gl.getExtension('WEBGL_lose_context').loseContext(); // WebGLContextEvent event with type "webglcontextlost" is logged.
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'WebGLContextEvent' 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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
WebGLContextEvent | Chrome Full support 9 | Edge Full support 12 | Firefox Full support 49 | 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 49 | Opera Android Full support 12 | Safari iOS Full support 8 | Samsung Internet Android Full support Yes |
statusMessage | Chrome Full support 9 | Edge Full support 12 | Firefox Full support 49 | 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 49 | Opera Android Full support 12 | Safari iOS Full support 8 | Samsung Internet Android Full support Yes |
Available in workers | Chrome No support No | Edge No support No | Firefox
Full support
49
| 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.