这几天学习COM组件,先用VB调用DLL:
- Private Sub Form_Load()
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Set myObj = CreateObject("IExample2.object")
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myObj.SetString ("Hello world")
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Copy = myObj.GetString()
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MsgBox Copy, 0, "GetString return"
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End Sub
测试调用成功!
但有一点小小的疑问:当输入对象名后,不能自动弹出该对象的方法与属性(到论坛上咨询,基本上说是VB编译器的问题),我至今也没弄明白原因!?
随后在javascript脚本中测试该组件:
- <html xmlns="">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
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<title>Untitled Document</title>
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</head>
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<body>
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<object classid="clsid:520F4CFD-61C6-4EED-8004-C26D514D3D19" id="IExample2.object" width="286" height="225">
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</object>
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<script language="JavaScript">
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var myObj ;
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myObj = document.getElementById("IExample2.object");
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myObj .SetString ("Hello world")
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alert(myObj.GetString ())
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</script>
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</body>
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</html>
测试也成功!
但还是有个问题,那就是采用下面的方式就不成功,是什么原因?
- <html xmlns="">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
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<title>Untitled Document</title>
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</head>
-
<body>
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<script language="JavaScript">
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var myObj= new ActiveXObject("IExample2.object")
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myObj.SetString ("Hello world")
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Copy = myObj.GetString()
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alert(Copy)
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</script>
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</body>
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</html>
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