DAQmxSetChanAttribute; where to find it?

[mwibm]

When compiling SG04 in VC6, there is a following error, how to set? Thanks.

Linking...
temp5Dlg.obj : error LNK2001: unresolved external symbol _DAQmxSetChanAttribute

[LYu]

Hi mwibm,

The link error sounds like a library file is missing from your project. Make sure you've added the NIDAQmx.lib file (C:\Program Files\National Instruments\NI-DAQ\DAQmx ANSI C Dev\lib\msvc) to your project and have included the header file, nidaqmx.h (C:\Program Files\National Instruments\NI-DAQ\DAQmx ANSI C Dev\include) in your source code files. Try one of the DAQmx examples (C:\Program Files\National Instruments\NI-DAQ\Examples\DAQmx ANSI C) to see if you encounter the same error still.

Thanks,
Lesley

[mwibm]

Hi, Lesley,

The NI's example (ANSI C) can run without any error. But if I run my code in VC6, it has the error. I had included the *.h and *.lib. I do not know what is the real reason of the error.

Thanks.

[LYu]

mwibm,

How might your code differ from the example program which acquires strain data also? Are you using "DAQmxSetChanAttribute" anywhere in your code? When you receive the error, does it tell you the line at which occurred at? "DAQmxSetChanAttribute" is not a DAQmx function defined in the Reference. Try using the example code as a starting point.

Thanks,
Lesley