Index: uspace/lib/wndmgt/include/wndmgt_srv.h
===================================================================
--- uspace/lib/wndmgt/include/wndmgt_srv.h	(revision 3a6d44b7107686f79a1655757bb73fedf182438b)
+++ uspace/lib/wndmgt/include/wndmgt_srv.h	(revision d5f4459ba692b00d99d79ac8d052bbe4cb22265d)
@@ -53,4 +53,5 @@
 	errno_t (*get_window_info)(void *, sysarg_t, wndmgt_window_info_t **);
 	errno_t (*activate_window)(void *, sysarg_t, sysarg_t);
+	errno_t (*deactivate_window)(void *, sysarg_t, sysarg_t);
 	errno_t (*close_window)(void *, sysarg_t);
 	errno_t (*get_event)(void *, wndmgt_ev_t *);