GtkWidget * canvas = gtk_plug_new((GdkNativeWindow) (hwnd));
gtk_widget_show_all(canvas);
XReparentWindow(GDK_WINDOW_XDISPLAY(canvas->window),
					GDK_WINDOW_XID(canvas->window),
					(Window)hwnd, 0, 0);
XMapWindow(GDK_WINDOW_XDISPLAY(canvas->window),
		   GDK_WINDOW_XID(canvas->window));