How can i use c++』s dll or VC++』s dll in LabWindows/CVI

[pigjer]

Because of my motion card is not belong to NI, the company of motion card provide three files to me (.dll .h .lib), I tried add these three files to project and run it, but occur a error：the pascal calling convention is not supported in the WIN32 version of CVI, can anyone tell me how to solve this problem。

[msaxon]

The PASCAL calling convention was a 16-bit Windows concept that is still included in VC++ for compatibility purposes, but is in fact equivalent to __stdcall.

So if you define PASCAL thus:

#define PASCAL __stdcall

#include "Mdsp.h"

and delete the one __declspec(dllexport) instance in Mdsp.h, then it should all work.

[pigjer]

thank you very much, your reply saved me.