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.
WebGLContextEvent
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 |
---|
WebGL Specification # 5.15 |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
WebGLContextEvent |
9
|
12
|
49
|
11
|
12
|
5.1
|
4.4
|
25
|
49
|
12
|
8
|
1.5
|
WebGLContextEvent |
17
|
12
|
49
|
11
|
15
|
6
|
4.4
|
25
|
49
|
14
|
8
|
1.5
|
statusMessage |
9
|
12
|
49
|
11
|
12
|
5.1
|
4.4
|
25
|
49
|
12
|
8
|
1.5
|
worker_support |
No
|
No
|
49
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGLContextEvent