case 'a': gui->tile_windows(0); return 1;
case 'b': gui->tile_windows(1); return 1;
case 'c': gui->tile_windows(2); return 1;
case 'a': gui->tile_windows(0); return 1;
case 'b': gui->tile_windows(1); return 1;
case 'c': gui->tile_windows(2); return 1;