自动激活activex control
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
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>
// docwrite.js
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>
// outerhtml.js embedControlLocation.outerHTML = '<embed src="examplecontrol">';
３．用createElement
<!-- HTML File --> <html> <body> <div id="DivID"> <script src="createElementExplicit.js"></script> </div> </body> </html>// createElementExplicit.js 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>
// external_script.js 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.aspｃｏｄｅｐｒｏｊｅｃｔ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