+ /* Watch WM_NORMAL_HINTS (aspect ratio, size increments, …) */
+ xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL);
+
+ /* Watch WM_CLIENT_LEADER (= logical parent window for toolbars etc.) */
+ xcb_property_set_handler(&prophs, atoms[WM_CLIENT_LEADER], UINT_MAX, handle_clientleader_change, NULL);
+
+ /* Watch WM_TRANSIENT_FOR property (to which client this popup window belongs) */
+ xcb_property_set_handler(&prophs, WM_TRANSIENT_FOR, UINT_MAX, handle_transient_for, NULL);
+