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 1.0The 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.
Update compatibility data on GitHub
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 1.5 |
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 1.5 |
Available in workers |
Chrome
No support No |
Edge
No support No |
Firefox Full support 49 Full support 49 Disabled' From version 49: 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.isContextLost()
WEBGL_lose_context
,WEBGL_lose_context.loseContext()
,WEBGL_lose_context.restoreContext()
- Events: webglcontextlost, webglcontextrestored, webglcontextcreationerror
WebGLContextEvent by Mozilla Contributors is licensed under CC-BY-SA 2.5.