screenY event attribute


screenY Event attribute

Definition and usage


screenY event attribute can return the position of the mouse pointer relative to the screen when the event occurs vertical coordinate.

Syntax

event.screenY

##Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript">
function coordinates(event){
	x=event.screenX
	y=event.screenY
	alert("X=" + x + " Y=" + y)
}
</script>
</head>
<body onmousedown="coordinates(event)">

<p>
在文档中点击某个位置。消息框会提示出指针相对于屏幕的 x 和 y 坐标。
</p>

</body>
</html>

RunInstance»Click the "Run Instance" button to view the online instance


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