-/* Save / load / unload (free) / reload interface configuration data. */
-extern void save_interface_conf();
-extern void load_interface_conf();
-extern void unload_interface_conf();
-extern void reload_interface_conf();
-
-/* Return offset into center map of "mapsize" on "position" in "framesize". */
-extern uint16_t center_offset(uint16_t position,
- uint16_t mapsize, uint16_t framesize);
-