OpenDoorMacroEventHandler : MulticastDelegate, ICloneable, ISerializable
      (ctor) OpenDoorMacroEventHandler( object object, IntPtr method )
      virtual IAsyncResult BeginInvoke( OpenDoorMacroEventArgs e, AsyncCallback callback, object object )
      virtual void EndInvoke( IAsyncResult result )
      virtual void Invoke( OpenDoorMacroEventArgs e )