Thread: Generating dll file

Hi guys,

I have a function written in C and I want to change it to dll in order to then implement it in the Labview. I followed the step by step walkthrough of msdn site (I'm using VS 2010), selected a dll application type. and just changed the function's header to:

Code:

extern "C"  _declspec(dllexport) extern "C" _declspec(dllexport) int Train(int numOfTrials, 
																		  int numPerTrial, 
																		  int numOfCommands,
																		  double* Data_in,
																		  double* b_in,
																		  double* bB_in,
																		  double* gmeans1_out,
																		  double* gmeans2l_out,
																		  double* gmeans2r_out);
void PrintMatrix(CvMat *Matrix,int Rows,int Cols);

extern "C" _declspec(dllexport) int Train(int numOfTrials, 
										  int numPerTrial, 
										  int numOfCommands,
										  double* Data_in,
										  double* b_in,
										  double* bB_in,
										  double* gmeans1_out,
										  double* gmeans2l_out,
										  double* gmeans2r_out)

And then copy and pasted the body of the function.
Then I'm supposed to run the file to get the dll generated output. But, in debug mode even though a dll is generated I get the error message that: "Unable to start program '\\.....\TrainDll.dll'. And when I run it in release mode it just freezes in the Generating Code step and never finishes.
Do you have any idea what's wrong here and what should I do?

Thanx

You don't run DLLs; you use them in your executable program.

Of course, but you first have to generate them. How do you generate? by running the dll-application type project you made.