WebGLRenderingContext.drawingBufferWidth

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

Syntax

gl.drawingBufferWidth;

Examples

Given this <canvas> element:

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

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

var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");
gl.drawingBufferWidth; // 300

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
Basic Support9129.011125.1No support
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
Basic Support(Yes)25No support9.0128.1

See also

Document Tags and Contributors

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