Agilent Technologies InfiniiVision 5000 Series Programmer's Manual page 696

12
Programming Examples
ErrorHandler:
End Function
Private Function DoQueryString(query As String) As String
ErrorHandler:
End Function
Private Function DoQueryNumber(query As String) As Double
ErrorHandler:
696
Call ivprintf(id, command + " ")
' Write definite-length block bytes.
Call ifwrite(id, byteArray(), lngBlockSize, vbNull, retCount)
' retCount is now actual number of bytes written.
CheckForInstrumentErrors command
DoCommandIEEEBlock = retCount
Exit Function
MsgBox "*** Error : " + Error, vbExclamation
End
Dim actual As Long
On Error GoTo ErrorHandler
Dim ret_val As Integer
Dim strResult As String * 200
Call ivprintf(id, query + vbLf)
Call ivscanf(id, "%200t", strResult)
CheckForInstrumentErrors query
DoQueryString = strResult
Exit Function
MsgBox "*** Error : " + Error, vbExclamation
End
On Error GoTo ErrorHandler
Dim dblResult As Double
Call ivprintf(id, query + vbLf)
Call ivscanf(id, "%lf" + vbLf, dblResult)
CheckForInstrumentErrors query
DoQueryNumber = dblResult
Exit Function
MsgBox "*** Error : " + Error, vbExclamation
End
Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Guide