Q: How to call DLLs directly

[gxchem@my-deja.com]

Dear fellas,

I want to use "Call Libary Funtion" to call DLLs by Borland C++. The C
program is a very easy one:
/**/
#include "extcode.h"
int32 easydll(int32 x);
int32 easydll(int32 x){
int32 y;
y = (x)+900;
return y;
}
/**/
And easydll.dll was successfully built. But while I configured the DLL
on the LV diagram (function Name set to: easydll), it said:

"The function name specified for this node cannot be found in the
library. Pop up on the Call Library Function node and select
Configure..., then choose the correct function name"

I don't want to use CIN to call DLLs(it worked). I just want to call
DLLs directly. Anybody has idea? thanks a lot.

--
Guoxiang Chen
Ph.D. Candidate
Ohio Unveristy, Athens, OH


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[microscope@my-deja.com]

The problem may be that LabVIEW will only find a function defined in C,
not C++. In the header file for the DLL you should be able to redefine
the function as C, rather than C++.


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