Example of assigning values to ActiveX control properties by param name in a web page

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The code is as follows:

<HTML>
<HEAD>
<TITLE>Test ActiveX</TITLE>
<OBJECT ID="TestCtrl" NAME="<span style="font-family:Arial,Helvetica,sans-serif">TestCtrl</span><span style="font-family:Arial,Helvetica,sans-serif">"</span>
CODEBASE="calc.CAB#version=1,0,0,1"
CLASSID="clsid:CDF1D789-F8A3-48F2-B0DE-0D72F2D89F76">
<PARAM NAME="downpath" VALUE="123456" />
</OBJECT>
<script language="javascript">
function doTest()
{
alert(<span style="font-family:Arial,Helvetica,sans-serif">TestCtrl</span><span style="font-family:Arial,Helvetica,sans-serif">.</span><span style="font-family:Arial,Helvetica,sans-serif">downpath</span><span style="font-family:Arial,Helvetica,sans-serif">);</span>
}
</script>
</HEAD>
<BODY>
<input type="button" value="Get left time" id="btnOK" onclick="doTest();"></input>
</BODY>
</HTML>

If the created attribute type is BSTR and the variable name is downpath, add the following code:

When creating an attribute, select the member variable method, and then add the following code in the code below

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The code is as follows:

void COCXTestCtrl::DoPropExchange(CPropExchange* pPX)
{
ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));
COleControl::DoPropExchange(pPX);
// TODO: Call PX_ functions for each persistent custom property.
PX_String(pPX, _T("downpath"), m_downpath, _T(""));
}

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