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DIG_Change_Message_Config Returns Improper Handle

Hardware: Digital I/O (DIO)>>Isolated>>PCI-6527

Problem: I have the NI PCI-6527 and I am programming in Visual Basic. I am trying to use change notification, but the NI-DAQ function DIG_Change_Message_Control is not working properly. I have already seen the KnowledgeBase on using Change Notification with the NI 6527 in Visual Basic (see link below), but now the handle being returned by DIG_Change_Message_Config is a 32-bit long int instead of the needed 16-bit short int. How can I get this functionality to work in Visual Basic?

Solution: A simple edit in the nidaq32.bas file is all that is needed to fix the handle return. Open nidaq32.bas and in the fifth parameter, replace the % with an & to change the handle return from a long to short int.

Related Links: KnowledgeBase 27F9MMQT: Using Change Notification with the NI 6527 in Visual Basic


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Report Date: 12/13/2002
Last Updated: 01/02/2003
Document ID: 2SCDK759

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