This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The OffscreenCanvas.transferToImageBitmap() method creates an ImageBitmap object from the most recently rendered image of the OffscreenCanvas.
Syntax
ImageBitmap OffscreenCanvas.transferToImageBitmap()
Return value
An ImageBitmap.
Examples
var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext("webgl");
// ... some drawing using the gl context ...
offscreen.transferToImageBitmap();
// ImageBitmap { width: 256, height: 256 }
Specifications
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'OffscreenCanvas.transferToImageBitmap()' in that specification. |
Living Standard |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | 46 (46) [1] | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 46.0 (46) [1] | No support | No support | No support |
[1] This feature is behind a feature preference setting. In about:config, set gfx.offscreencanvas.enabled to true.
See also
- The interface defining this method,
OffscreenCanvas ImageBitmapRenderingContext.transferImageBitmap()