How to call IMGDLL DLL with pointer to array

I am trying to use the DLL IMGDLL to retrieve a histogram for an image. The function that I am trying to call requires a pointer to an array that it will fill with data. The array is to be 256 elements of long integers. How do I pass a pointer to an array???
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chaos_59Asked:
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Erick37Commented:
Pass the location of the first element of the array.
Depending on the DLL use

Dim a(255) As Integer
and pass a(0) ByRef
or VarPtr(a(0)) ByVal
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