Close MediaPortal from plugin (1 Viewer)

[AlexPlas]

I'm developing now plugin for restarting MedaiPortal after resume from standby or hibernate. And now I have problem with MediaPortal closing. As I understad normal way to close MediaPortal is:

      Action action = new Action(Action.ActionType.ACTION_EXIT, 0, 0);
      GUIGraphicsContext.OnAction(action);

But while MediaPortal restoring after standby this code closing only GUI part of MediaPortal while process still running invisibly.
I belive there shuld be some property to now MediaPortal started completly or not. Can someone tell me where is this property?