Teledyne LeCroy USB Analyzer Automation Manual - Manual (Page 62)

Teledyne LeCroy Automation API Reference Manual for USBTracer, USB Advisor, and Voyager USB Protocol
Suite
62
3.2.2 IUsbTrace2::GotoUnit
HRESULT GotoUnit ([in] long level, [in] long index );
Instructs the trace view to jump to the specified transaction unit.
Parameters
level Transaction level
Possible values are:
0 = USB Packets
1 = USB Transactions
2 = USB Split Transactions
3 = USB Transfers
4 = Host WireAdapter Segments
5 = Host WireAdapter Transfers
6 = Device WireAdapter Segments
7 = Device WireAdapter Transfers
8 = PTP Transactions
9 = PTP Objects
10 = PTP Sessions
index Index of unit inside transaction level
Return values
ANALYZERCOMERROR_INVALIDPACKETNUMBER Unable to jump to specified transaction
unit: Either transaction level or
transaction index is invalid.
Example
WSH:
Set Analyzer = WScript.CreateObject("CATC.UsbTracer")
CurrentDir = Left(WScript.ScriptFullName, InstrRev(WScript.ScriptFullName, "\"))
Analyzer.StartRecording (CurrentDir & "test_ro.rec")
'... do something.
Set Trace = Analyzer.StopRecordingAndWaitForTrace
Trace.GotoUnit( 3, 2 ) ' jumps to USB transfer #2
C++:
IUsbTrace3* Usb_trace;
. . .
try
{
int level = 3; // USB Transfers
int index = 2;
Usb_trace ->GotoUnit( 3, 2 );
}
catch (_com_error& er)
{
if (er.Description().length() > 0)
::MessageBox( NULL, er.Description(), _T("UsbAnalyzer client"), MB_OK );
else
::MessageBox( NULL, er.ErrorMessage(), _T("UsbAnalyzer client"), MB_OK );
return 1;
}