Source: hsio/map_lanfile.pro
MAP_LANFILE Associate a map file with an HSIO file. Usage map_lanfile, index, mapfile, error Arguments: index long input The channel number with which to associate the map file mapfile string input The name of the map file (may be given as null when the name is <dat_file>_map). error long output The error code returned. History: Placeholder: 25/11/03; SJT