+/*! Returns the monitor which contains the active window, or the one
+ containing the pointer otherwise. */
+guint screen_monitor_active(void);
+
+Rect *screen_physical_area_active(void);
+
+/*! Returns the primary monitor, as specified by the config.
+ @fixed If TRUE, then this will always return a fixed monitor, otherwise
+ it may change based on where focus is, or other heuristics.
+ */
+guint screen_monitor_primary(gboolean fixed);
+
+/*! Returns physical area for the primary monitor, as specified by the config.
+ @fixed If TRUE, then this will always use a fixed monitor as primary,
+ otherwise it may change based on where focus is, or other heuristics.
+ See screen_monitor_primary().
+*/
+Rect *screen_physical_area_primary(gboolean fixed);
+
+/* doesn't include struts which the search area is already outside of when
+ 'search' is not NULL */
+#define SCREEN_AREA_ALL_MONITORS ((unsigned)-1)
+#define SCREEN_AREA_ONE_MONITOR ((unsigned)-2)
+
+/*! @param head is the number of the head or one of SCREEN_AREA_ALL_MONITORS,
+ SCREEN_AREA_ONE_MONITOR
+ @param search NULL or the whole monitor(s)
+ @return A Rect allocated with g_slice_new()
+ */
+Rect* screen_area(guint desktop, guint head, Rect *search);
+
+gboolean screen_physical_area_monitor_contains(guint head, Rect *search);