public static void Main()
{
byte[] string_filled_in_dll = new byte[21];
STRUCT_DLL struct_dll = new STRUCT_DLL();
struct_dll.count_int = 5;
int[] ia = new int[5];
ia[0] = 2; ia[1] = 3; ia[2] = 5; ia[3] = 8; ia[4] = 13;
GCHandle gch = GCHandle.Alloc(ia);
struct_dll.ints = Marshal.UnsafeAddrOfPinnedArrayElement(ia, 0);
int ret = func_dll(5, string_filled_in_dll, ref struct_dll);
Console.WriteLine("Return Value: " + ret);
Console.WriteLine("String filled in DLL: " + System.Text.Encoding.ASCII.GetString(string_filled_in_dll));
}
private static extern int func_dll(
int an_int,
[MarshalAs(UnmanagedType.LPArray)] byte[] string_filled_in_dll,
ref STRUCT_DLL s
);