Passing a 2d array to a DLL written in C++

[znakeeye]

Hi!

I have made a DLL in C++/MFC. I have to implement a function that can
fill a LabView 2D-array with some data. How can that be done?

I suppose the function should look something like this:
int MyDllFunction(unsigned char **matrix, int width, int height)
{
   for (int r = 0; r < height; r++)
   {
      for (int c = 0; c < width; c++)
         matrix[r][c] = SomeData(r, c);
   }
   
   return 1;
}

Where should the memory of the array be declared? Maybe LabView can
allocate the memory itself and pass the function a char-array
(together with the width and height) to my function? How does it work?

Any help is really appreciated! Thanks!

/Chris