HTMLCanvasElement.transferControlToOffscreen()

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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The HTMLCanvasElement.transferControlToOffscreen() method transfers control to an OffscreenCanvas object, either on the main thread or on a worker.

Syntax

OffscreenCanvas HTMLCanvasElement.transferControlToOffscreen()

Return value

An OffscreenCanvas object.

Examples

var htmlCanvas = document.createElement('canvas');
var offscreen = htmlCanvas.transferControlToOffscreen();
var gl = offscreen.getContext('webgl');

// ... some drawing using the gl context ...

// Push frames back to the original HTMLCanvasElement
gl.commit();

Specifications

Currently drafted as a proposal in the OffscreenCanvas specification.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No No441 No No No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No No441 No No No

1. From version 44: this feature is behind the gfx.offscreencanvas.enabled preference. To change preferences in Firefox, visit about:config.

See also

Etiquetas y colaboradores del documento

Colaboradores en esta página: fscholz, nmve
Última actualización por: fscholz,