当前位置：文江博客知识库简体中文文档 Web API CanvasRenderingContext2D clearHitRegions

CanvasRenderingContext2D.clearHitRegions() - Web API 接口参考编辑

已废弃
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

CanvasRenderingContext2D.clearHitRegions() 是 Canvas 2D API 在画布中删除所有点击区域的方法。

语法

void ctx.clearHitRegions();

示例

使用 clearHitRegions 方法

这仅是一段简单的使用 clearHitRegions 方法的代码片段。

HTML

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

JavaScript

var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");

// set some hit regions
ctx.addHitRegion({id: "eyes"});
ctx.addHitRegion({id: "nose"});
ctx.addHitRegion({id: "mouth"});

// remove them altogether from the canvas
ctx.clearHitRegions();

规范描述

Specification	Status	Comment
HTML Living Standard CanvasRenderingContext2D.clearHitRegions	Living Standard

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!