自动激活activex control

最新推荐文章于 2010-07-27 19:31:00 发布

最新推荐文章于 2010-07-27 19:31:00 发布 · 172 阅读

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微软调整了浏览器ａｃｔｉｖｅｘ的策略，在被激活之前不能对他进行操作，没有激活时许多事件被屏蔽

被屏蔽事件如下

onactivate	ondragleave	onmouseout
onbeforeactivate	ondragover	onmouseover
onbeforecopy	ondragstart	onmouseup
onbeforecut	ondrop	onmousewheel
onbeforedeactivate	onfocus	onmove
onbeforepaste	onfocusin	onmoveend
onblur	onfocusout	onmovestart
onclick	onhelp	onpage
oncontextmenu	onkeydown	onpaste
oncontrolselect	onkeypress	onresize
oncopy	onkeyup	onresizeend
oncut	onlosecapture	onresizestart
ondblclick	onmousedown	onscroll
ondeactivate	onmouseenter	onselectstart
ondragend	onmouseleave
ondragenter	onmousemove

解决办法有下面几种（主要是由外部ｊｓ文件动态载入控件以避免激活）

１．用document.write动态载入（注意不能使用writeln，如果使用ｗｒｉｔｅｌｎ将会和直接载入一样要激活）

<!-- HTML File -->
<html>
  <body leftmargin=0 topmargin=0 scroll=no>
    <script src="docwrite.js"></script>
  </body>
</html>

document.write('<object classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6">');
document.write('<param name="URL" value="example.wmv">');
document.write('<param name="autoStart" value="-1"></object>');

２．用ＯｕｔｅｒＨｔｍｌ

<!-- HTML File -->
<html>
  <body> 
    <div id="embedControlLocation">
      <script src="embedControlOuterHTML.js"></script>
    </div>
  </body>
</html>

embedControlLocation.outerHTML = '<embed src="examplecontrol">';

３．用createElement

<!-- HTML File -->
<html>
  <body> 
    <div id="DivID">
      <script src="createElementExplicit.js"></script>
    </div>  
  </body>
</html>

var myObject = document.createElement('object');
DivID.appendChild(myObject);
myObject.width = "200";
myObject.height = "100";
myObject.classid= "clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"; 
myObject.URL = "example.wmv";
myObject.uiMode = "none" ;

４．ｉｎｎｅｒＨｔｍｌ

<html> <head> <script src="external_script.js" language="JScript"></script> </head> <body> <div id="EXAMPLE_DIV_ID"> This text will be replaced by the control </div> <script language="JScript"> CreateControl( "EXAMPLE_DIV_ID", "clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6", "EXAMPLE_OBJECT_ID", "600", "400", "example.wmv", "-1") </script> </body> </html>

function CreateControl(DivID, CLSID, ObjectID,
                       WIDTH, HEIGHT, URL, AUTOSTART)
{
  var d = document.getElementById(DivID);
  d.innerHTML = 
    '<object classid=' + CLSID + ' id=' + ObjectID + 
    ' width=' + WIDTH + ' height=' + HEIGHT +'>
    <param name="URL" value=' + URL + '>
    <param name="autoStart" value=' + AUTOSTART + '/>';
}

更多信息参见

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/overview/activating_activex.asp

ｃｏｄｅｐｒｏｊｅｃｔ上有人已经包装了现成的服务器控件用来做这件事情

http://www.codeproject.com/aspnet/AutoActivateControl.asp