IMAQdx DLL

[Klemen]

Dear programmers,

I am trying to build a simple .dll, using IMAQdx, but having problems at defining function prototypes. How can I properl< export "Session In/Out" and how can I handle the type def (TD) structure?

I am attaching the project and would be thankful for any explanation about this. This is just out of my curiosity.

Best regards,

K

[ValkoA]

Hi Klemen!

 Library Calls from LabVIEW have to use standard C or stdcall conventions, even if they call a DLL compiled in LabVIEW, so if you have special datatypes and structures, you have to pass them as generic data fit this constraint. In your case, I would advise ot use the Flatten to String and Unflatten from String VIs, or the Type Cast VI and pass the data as a String Handle.

Here you can find more information about passing data to DLLs:

https://decibel.ni.com/content/docs/DOC-9079

Kind regards:

Andrew Valko

National Instruments

[Klemen]

Thank you very much for the explanation! I will check out the attached link.

Best regards,

K