System.Windows.Application.UnregisterEvent C# (CSharp) Method

		internal void UnregisterEvent (int eventId, Delegate managedHandler)
		{
			UnmanagedEventHandler nativeHandler = EventList.RemoveHandler (eventId, managedHandler);
			
			if (nativeHandler == null)
				return;
			
			Events.RemoveHandler (this, eventId, nativeHandler);
		}