+void ui_cb_preferences(GtkMenuItem *mi, gpointer data);
+void ui_cb_menu_quit(GtkMenuItem *mi, gpointer data);
+void ui_cb_sensor_preferences(GtkMenuItem *mi, gpointer data);
+
+GtkWidget *ui_get_graph(void);
+
+struct psensor **ui_get_sensors_ordered_by_position(struct psensor **);