Teledyne LeCroy Automation API for Teledyne LeCroy PETracer_PETrainer - Manual (Page 12)

Teledyne LeCroy Automation API for PETracer/PETrainer
7
3.1.2 IAnalyzer::OpenFile
HRESULT OpenFile (
[in] BSTR file_name,
[out, retval] IDispatch** trace )
Opens a trace file, and creates the PETrace object.
Parameters
file_name String providing the full pathname to the trace file
trace Address of a pointer to the PETrace object interface
Return values
ANALYZERCOMERROR_UNABLEOPENFILE Unable to open file
Remarks
PETrace object is created via this method call, if the call was successful.
Example
WSH:
CurrentDir = Left( WScript.ScriptFullName, InstrRev( WScript.ScriptFullName, “\” ) )
Set Analyzer = WScript.CreateObject( “CATC.PETracer” )
Set Trace = Analyzer.OpenFile( CurrentDir & "Input\errors.pex" )
C++:
HRESULT hr;
IPEAnalyzer* poPEAnalyzer;
// create PEAnalyzer object
if ( FAILED( CoCreateInstance(
CLSID_PEAnalyzer,
NULL, CLSCTX_SERVER,
IID_IPEAnalyzer,
(LPVOID *)&poPEAnalyzer ) )
return;
// open trace file
IDispatch* trace;
try
{
trace = poPEAnalyzer->OpenFile( m_szRecFileName ).Detach();
}
catch ( _com_error& er)
{
if (er.Description().length() > 0)
::MessageBox( NULL, er.Description(), _T("PETracer client"), MB_OK );
else
::MessageBox( NULL, er.ErrorMessage(), _T("PETracer client"), MB_OK );
return 1;
}
// query for VTBL interface
IPETrace* pe_trace;
hr = trace->QueryInterface( IID_IPETrace, (LPVOID *)&pe_trace );
trace->Release();
if( FAILED(hr) )
return;