onmousewheel event 缩放图片效果- Javascript

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Javascript 中的 onmousewheel event 缩放图片效果

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-10-12 浏览: 81 ::

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必须点击广告才能进入的代码 [原创]比较方便的onMouseWheel缩放图片效果

点击运行可以看到效果:

<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<TITLE>onMouseWheel Event Sample－www.51windows.Net</TITLE>
<SCRIPT>
var count = 10;
function Picture()
{
count = Counting(count);
Resize(count);
return false;
}
function Counting(count){
if (event.wheelDelta >= 120)
count++;
else if (event.wheelDelta <= -120)
count--;
return count;
}
function Resize(count){
oImage.style.zoom = count + '0%';
oCounter.innerText = count + '0%';
}
</SCRIPT>
</HEAD>
<BODY>
<h1>onmousewheel event</h1>
This sample uses the onmousewheel event to expand or contract the picture below.
Move the cursor over the picture and roll the mouse wheel up and down.
<span style="font-weight:bold">Size =
<span id="oCounter" style="color:red;">100%</span></span>
<img id="oImage" src="/upload/tech/20091012/20091012081912_e2230b853516e7b05d79744fbd4c9c13.gif" >
<A HREF="http://msdn.microsoft.com/workshop/samples/author/dhtml/refs/onmousewheelEX.htm" target="_blank">http://msdn.microsoft.com/workshop/samples/author/dhtml/refs/onmousewheelEX.htm</A>.
</BODY>
</HTML>
<div style="position: absolute; top: 10; right: 10; width: 148; height: 18;cursor:hand">
<input type="button" name="Button" value="查看源代码" onClick= 'window.location = "view-source:" + window.location.href'></div>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

必须点击广告才能进入的代码 [原创]比较方便的onMouseWheel缩放图片效果

Javascript 中的 onmousewheel event 缩放图片效果

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