ActiveX for dummies

tpeter343 · Jul 13, 2004

I am a new ActiveX user. I am attempting to incorporate an ActiveX control into my page. I've been successful at opening and envoking all the Methods on my control. However, my control has an event called DaqUpdate() that it envokes to pass data from the control to the web page. My problem is that I can't seem to get the web page to recognize the event. I know it happens, because the control works in my MSExcel VBScript just fine.

I've implemented the following to react to the event... is this sufficient to react to a ActiveX event or am I missing something? (Obviously I am it doesn't work)

function DaqUpdate(lValueCount, pValues)
{
alert("DaqUpdate Called");
}

Here is the entire HTML page:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Com Object Tester 2</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<script language="JavaScript" type="text/JavaScript">

xDoc = new ActiveXObject("InGenius.DaqCtrl.1");
xDoc.UnregisterAllValues();
xDoc.RegisterValue("Throttle Angle");
xDoc.StartDaq(0);

if (xDoc==null)
{
alert('Error Loading ActivexObject');
}

alert("before function");

function DaqUpdate(lValueCount, pValues)
{
alert("DaqUpdate Called");
}

function closeUI()
{
xDoc.StopDaq();
xDoc.UnregisterAllValues();
}

</script>
<body onunload="closeUI()">
</body>
</html>

teriviret · Jul 13, 2004

You made the "DaqUpdate" function but you didn't associate the ActiveX control's event with the function. I'm a little new to ActiveX too, this is how I scripted mine:

Code:

    <OBJECT ID="PlayerRecorderUI"
      CLASSID="CLSID:23E1CDB1-48E9-446D-9544-0FE14CF9A2BC"
      CODEBASE="launchpad.CAB#version=1,0,0,0"
      WIDTH="0" HEIGHT="0"
      >
      <PARAM NAME="RecordControls" VALUE="FALSE">
    </OBJECT>

    <SCRIPT type="text/javascript" for="PlayerRecorderUI"
      event="MinSizeChanged(cx,cy)"> <!--

        width = cx;
        height = cy;

      //-->
    </SCRIPT>

Instead of a Javascript function I have specified an explicit event handler. That's the only way I know how to do it.

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ActiveX for dummies

tpeter343

Programmer

teriviret

Programmer

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