WebGLRenderingContext: drawingBufferHeight property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

The read-only WebGLRenderingContext.drawingBufferHeight property represents the actual height of the current drawing buffer. It should match the height attribute of the <canvas> element associated with this context, but might differ if the implementation is not able to provide the requested height.

Value

A number.

Examples

Given this <canvas> element:

html
<canvas id="canvas"></canvas>

You can get the height of the drawing buffer with the following lines:

js
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
gl.drawingBufferHeight; // 150

Specifications

Specification
WebGL Specification
# DOM-WebGLRenderingContext-drawingBufferHeight

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
drawingBufferHeight

Legend

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Full support
Full support

See also