NIDAQmxBase Library Linking within Linux

[Chris McG]

Hi all,

I have written a piece of C code that provides a native library for my Java code to 'JNI' to. Problem is, I don't know which libraries that I need to link from NIDAQmxBase to get it to work.

The Java code is able to find the C shared object library that I have created, but unable to run any of the DAQmxBase functions.

Obviously, I am not compiling this correctly in some way and haven't linked the daqmxbase libraries, but I did think that having the nidaqmxbase.h was enough - it was in Windows...

Does anyone have any ideas? I am using gcc.

Cheers
Chris

[Ryan_V[DE]]

Chris,

I have never tried this, but you should only need to link nidaqmxbase.lib when you build your C library. Are you doing this? Do you get an error when you run your Java application? If so, what is it? Also, were you able to do this successfully with NI-DAQmx (not Base)?

[Chris McG]

Hi Ryan,

Apologies, I should have posted back earlier - I have worked out how to do this, I needed to pass the library directly to the compiler - something that I did not need to do in Windows.

I will post the exact command when I am back in the office tomorrow.

Thanks again
Chris

[Kurt_NISalesEngineer]

Below is a useful KB that provides information about using DLLs to get java to work with NI drivers

http://digital.ni.com/public.nsf/websearch/802A9D349090D3F5862565CC0076BCF9?OpenDocument

I hope this helps!

Kurt

[maht]

Hi!

I'm also working in a JNI wrapper in order to use NIDAQmxBase for Linux from Java code but I have some problems. I posted a message in the forums with my problems and an attachment with some code:

http://forums.ni.com/ni/board/message?board.id=250&message.id=22944

Please, seems you have to do things similiar to mine, so I'll thanks you a lot if you could help me in anyway!

I tried to send you an email because this post has been here from several months and perhaps you don't look at it anymore, but I have to try 🙂

Thanks in advance!