Marshaling a C++ two-dimensional fixed length char array as a structure member

Question

I am trying to call an unmanaged C++ function, that has a structure as an input parameter. The structure is defined in the header file like this:

struct MySt         


        

Answer 1

[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst=150)]
 public char[] aaszNames;

That marshalling type looks well. Probably issue in function call, or bad memory allocation/