Hi there,

   I have a wiered scenario. I have two structures defined this way in
unmanaged dll.

struct A{
   char * name;
   int ID;
};

struct B{
   struct A* record;
};

Then I have a function in the dll that consumes a pointer to struct B. like
this.

  int InitRecord(struct B* data);

I declared the method as below in C#.

[StructLayout(LayoutKind.Sequential)]
 public struct ManagedStructA{

   public System.String name;
   public System.Int16 ID;
};

[StructLayout(LayoutKind.Sequential)]
 public struct ManagedStructB{

public System.IntPtr ManagedStructA;

};

[DllImport("MyCDll.Dll")]
public static extern System.Int16 InitRecord(ref ManagedStructB
managedData);

My question is how can i convert the ManagedStructA object to an IntPtr. Or
is there anyother way I can pass ManagedStructA to ManagedStructB so it will
be passed as a pointer internally. I tried using this declaration but it
throws exception saying "Marshaling types to LPStruct is not supported on
structure field"

[StructLayout(LayoutKind.Sequential)]
 public struct ManagedStructB{
[MarshalAs(UnmanagedType.LPStruct)]
public System.IntPtr ManagedStructA;

};

Thanks for help.