How do I marshal a pointer to an array of pointers to structures?

Posted by Daniel Stutzbach on Stack Overflow See other posts from Stack Overflow or by Daniel Stutzbach
Published on 2010-03-26T21:56:05Z Indexed on 2010/04/02 23:43 UTC
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I have a C function with the following signature:

int my_function(int n, struct player **players)

players is a pointer to an array of pointers to struct player objects. n is the number of pointers in the array. The function does not modify the array nor the contents of the structures, and it does not retain any pointers after returning.

I tried the following:

[DllImport("mylibary.dll")]
static extern int my_function(int n, 
    [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] 
     player_in []players);

However, that marshals the data as a pointer to an array of structures, not a pointer to an array of pointers to structures.

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