Index: uspace/lib/ui/include/types/ui/window.h
===================================================================
--- uspace/lib/ui/include/types/ui/window.h	(revision c48192e563fb04c9bdbb35e760ca93083189dc21)
+++ uspace/lib/ui/include/types/ui/window.h	(revision 5d6213034774b404c59bb28fa4d9b10fcabfca81)
@@ -67,6 +67,8 @@
 	/** Popup window */
 	ui_wndf_popup = 0x1,
+	/** Topmost window */
+	ui_wndf_topmost = 0x2,
 	/** Special system window */
-	ui_wndf_system = 0x2
+	ui_wndf_system = 0x4
 } ui_wnd_flags_t;