External function

[thepersonof]

Hi I have an external dll (to which I have the source) that contains this function: void DoIteration(float *xarray ,float*yarray,const int*array) I know that I can call this function with dll import, but how can I create these arrays and pass a pointer? These arrays are large so it would be impractical to have to pass them every call. Thank you for your help John

[Andrei Ungureanu]

Hi, In C# you do not need to pass the pointer to the array. Your DLL Import line should look like: [DLLImport("x.dll")] public extern void DoIteration(float[] xarray,float[] yarray,const int[] array);

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[thepersonof]

thanks