Teledyne LeCroy UWBTracer Automation Manual - Manual (Page 78)

LeCroy UWBTracer Automation API Reference Manual Manual Version 3.02
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7.1.1 _IAnalyzerEvents::OnTraceCreated
HRESULT OnTraceCreated ( [in] IDispatch* trace );
Fired when trace is created; this event is a result of IUwbAnalyzer::StartRecording/
IUwbAnalyzer::StopRecording method call
Parameters
trace Address of a pointer to the UwbTrace object primary interface
Return values
Remarks
Make sure the event handlers have __stdcall calling convention.
Example
VBScript:
ID = Analyzer
CLASSID = "clsid:EE43DE29-65CA-4904-B111-32919E00D061" >
ID = Analyzer
CLASSID = "clsid:EE43DE29-65CA-4904-B111-32919E00D061" >
C++:
HRESULT __stdcall OnTraceCreated( IDispatch* trace )
{
IUwbTrace* UWB_trace;
HRESULT hr;
hr = trace->QueryInterface( IID_IUwbTrace, (void**)&UWB_trace );
if (FAILED(hr))
{
_com_error er(hr);
if (er.Description().length() > 0)
::MessageBox( NULL, er.Description(), _T("UwbAnalyzer client"),
MB_OK );
else
::MessageBox( NULL, er.ErrorMessage(), _T("UwbAnalyzer client"),
MB_OK );
return hr;
}
. . .
return hr;
}