DEVICE     s1          Name of HALO screen device             HALOIBMG.DEV
PRINTER    s1          Name of HALO printer device            none
FONT       s1          Name of HALO stroke font to use        HALO104.FNT
LEGEND     s1          Legend is centered over top of graph   none
TITLES     s1,s2...sn  Titles are displayed underneath BARs   none
MODE       v1          Graphics mode (device dependent)       0
ATTRIBUTES v1,v2...vn  Printer attributes (device dependent)  none
SCALE      v1,v2       Set extent of Y-Axis from v1...v2      autoscaling
DATA       v1,v2...vn  Input n data values (may be repeated)  none
COLORS     c1,c2...cn  Color pattern to use for bars          monochrome hatch
END                    Signifies end of a graph               N/A