WebGLRenderingContext.isContextLost()

The WebGLRenderingContext.isContextLost() method returns a Boolean indicating whether or not the WebGL context has been lost.

Syntax

gl.isContextLost();

Return value

A Boolean. True if the context is lost, false otherwise.

Examples

For example, when checking for program linking success, you could also check if the context is not lost:

gl.linkProgram(program);

if (!gl.getProgramParameter(program, gl.LINK_STATUS) && !gl.isContextLost()) {
  var info = gl.getProgramInfoLog(program);
  console.log('Error linking program:\n' + info);
}

Specifications

Specification Status Comment
WebGL 1.0
The definition of 'WebGLRenderingContext.isContextLost' in that specification.
Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support912411125.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes25 Yes Yes128.1 Yes

See also

Document Tags and Contributors

Contributors to this page: fscholz, nmve, teoli
Last updated by: fscholz,