Someone

		private void XEventThread ()
		{
			while (true) {
				XEvent xevent = new XEvent ();

				Xlib.XNextEvent (display, ref xevent);

				if (xevent.AnyEvent.type == XEventName.KeyPress
				    && Xlib.XFilterEvent (ref xevent, FosterParent.Handle))
					continue;

				X11Hwnd hwnd = (X11Hwnd)Hwnd.GetObjectFromWindow(xevent.AnyEvent.window);
				if (hwnd != null)
					hwnd.Queue.EnqueueLocked (xevent);
			}
		}