How do I read in from a Lab-PC+ card using Visual Basic?

[CBes]

I have a Lab-PC+ card installed and hooked up to a number of pressure trasnducers etc. I want to read the data in using VB but I've heard that VB cannot interface to I/O without some extraq bits of software.

[JustinBritten]

While your data acquisition programming in Visual Basic will be easier and faster with our Measurement Studio product, you are not restricted to using it. You can simply make calls into the NI-DAQ driver DLL. Take a look at the first Knowledge Base article I have linked below for information on installing NI-DAQ examples for VB. You will be interested in the second paragraph which describes how to install examples from the driver.

How Do I Install the DAQ Example Programs for VB and VC?
http://digital.ni.com/public.nsf/websearch/67B97D1BADB40A4186256C7500770847?OpenDocument

As for the API into the driver DLL, you will need the NI-DAQ Function Reference Manual, which I have also linked below.

NI-DAQ Function Reference Manual for PC Compati
bles
http://digital.ni.com/manuals.nsf/websearch/1630A0B68738B269862567C1007A2912?OpenDocument&node=132100_US

Regards,
Justin Britten

Applications Engineer
National Instruments