void gtext (mode) SVC.C Level 1
char mode The mode of text insertion.

mode = 1 causes the insertion of text as a string instead of a series of strokes into the output file. The PostScript support provides for the substitution of a PostScript font for the inserted string. 
mode = 0 causes the stroke-table fonts to be displayed and placed as individual vector ends in the output file. The default is mode = 0.

gtext() allows you to store text strings as strings rather than as a series of line segments. If you do this and print to PostScript, you can use one PostScript font to print all of these strings. It is now better to use PostScript fonts directly in your calls to font().