C# Definition:

[StructLayout(LayoutKind.Sequential)]
struct NMHDR
{
   public IntPtr hwndFrom;
   public IntPtr idFrom;
   public int code;
}

VB Definition:

<StructLayout(LayoutKind.Sequential)> _  
Structure NMHDR
   Public hwndFrom As IntPtr
   Public idFrom As IntPtr
   Public code As Integer

   Public Shared Function FromMessage(ByVal msg As Message) As NMHDR
     Return DirectCast(msg.GetLParam(GetType(NMHDR)), NMHDR)
   End Function
End Structure

User-Defined Field Types:

None.

Notes:

None.