+
+/**
+ * This is called when the rootwindow receives a configure_notify event and
+ * therefore the number/position of the Xinerama screens could have changed.
+ *
+ */
+void xinerama_requery_screens(xcb_connection_t *conn);
+
+/**
+ * Looks in virtual_screens for the i3Screen whose start coordinates are x, y
+ *
+ */
+i3Screen *get_screen_at(int x, int y, struct screens_head *screenlist);
+
+/**
+ * Looks in virtual_screens for the i3Screen which contains coordinates x, y
+ *
+ */