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---
title: GlobalEventHandlers.onpointerdown
slug: Web/API/Element/pointerdown_event
---
{{ApiRef("HTML DOM")}}
**`pointerdown`** 事件的 {{domxref("GlobalEventHandlers","全局事件处理程序")}}
## 语法
```plain
var downHandler = targetElement.onpointerdown;
```
### 返回值
- `downHandler`
- : _pointerdown_ 事件触发对象的事件处理程序。
## 示例
当前示例展示两种方式使用 _onpointerdown_ 去设置元素的 pointerdown 事件处理程序。
```js
<html>
<script>
function downHandler(ev) {
// Process the pointerdown event
}
function init() {
var el=document.getElementById("target1");
el.onpointerdown = downHandler;
}
</script>
<body onload="init();">
<div id="target1"> Touch me ... </div>
<div id="target2" onpointerdown="downHandler(event)"> Touch me ... </div>
</body>
</html>
```
## 规范
{{Specifications}}
## 浏览器兼容性
{{Compat}}
## 参见
- 相关事件
- [`gotpointercapture`](/zh-CN/docs/Web/API/Element/gotpointercapture_event)
- [`lostpointercapture`](/zh-CN/docs/Web/API/Element/lostpointercapture_event)
- [`pointerover`](/zh-CN/docs/Web/API/Element/pointerover_event)
- [`pointerenter`](/zh-CN/docs/Web/API/Element/pointerenter_event)
- [`pointermove`](/zh-CN/docs/Web/API/Element/pointermove_event)
- [`pointercancel`](/zh-CN/docs/Web/API/Element/pointercancel_event)
- [`pointerup`](/zh-CN/docs/Web/API/Element/pointerup_event)
- [`pointerout`](/zh-CN/docs/Web/API/Element/pointerout_event)
- [`pointerleave`](/zh-CN/docs/Web/API/Element/pointerleave_event)