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ext.restoreContext

The WEBGL_lose_context.restoreContext() method is part of the WebGL API and allows you to simulate restoring the context of a WebGLRenderingContext object.

Syntax

gl.getExtension('WEBGL_lose_context').restoreContext();

Errors thrown

  • INVALID_OPERATION if the context was not lost.

Examples

With this method, you can simulate the webglcontextrestored event:

var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');

canvas.addEventListener('webglcontextrestored', function(e) {
  console.log(e); 
}, false);

gl.getExtension('WEBGL_lose_context').restoreContext();

Specifications

Specification Status Comment
WEBGL_lose_context
The definition of 'WEBGL_lose_context.loseContext' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
Basic Support ? ? 19.0 ? ? ? ?
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
Basic Support ? ? ? ? ? ? ?

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_lose_context/restoreContext