Agilent Technologies InfiniiVision 3000 X-Series Programmer's Manual page 1244

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Programming Examples
ErrorHandler:
End Sub
Private Sub DoCommand(command As String)
ErrorHandler:
End Sub
Private Function DoCommandIEEEBlock(command As String, _
ErrorHandler:
End Function
Private Function DoQueryString(query As String) As String
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MsgBox "Waveform format BYTE data written to " + _
"c:\scope\data\waveform_data.csv."
Exit Sub
MsgBox "*** Error : " + Error, vbExclamation
End
On Error GoTo ErrorHandler
Call ivprintf(id, command + vbLf)
CheckInstrumentErrors
Exit Sub
MsgBox "*** Error : " + Error, vbExclamation
End
lngBlockSize As Long)
On Error GoTo ErrorHandler
' Send command part.
Call ivprintf(id, command + " ")
' Write definite-length block bytes.
Call ifwrite(id, byteArray(), lngBlockSize, vbNull, retCount)
' retCount is now actual number of bytes written.
DoCommandIEEEBlock = retCount
CheckInstrumentErrors
Exit Function
MsgBox "*** Error : " + Error, vbExclamation
End
Dim actual As Long
Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide