WebGLRenderingContext.drawingBufferHeight

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.

WebGLRenderingContext.drawingBufferHeight 只读属性,指示当前绘图缓冲区的实际高度。它应当匹配与绘图上下文相关联的 <canvas> 元素的高度属性,如果实现未能提供所要求的高度,其值将有所不同。

语法

gl.drawingBufferHeight;

示例

指定 <canvas> 元素:

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

你可以通过下面几行代码来获取绘图缓冲区的高度:

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

规范

Specification
WebGL Specification
# DOM-WebGLRenderingContext-drawingBufferHeight

浏览器兼容性

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

相关链接