XmDrawingArea?
[Last modified: Sept 95]

Answer: Richard M. Goldstein (rickg@Eng.Sun.COM) writes: If your system
supports the Display PostScript extension (or NX agent), the newer revs of the
dpstkXm library contains a type of drawing area widget designed specifically
for use with DPS.  Source for the latest DPS client-side is also ftp'able from
contrib.

Ramiro Estrugo (restrugo@fateware.com) writes: Have a look at ghostscript.
[With] a little editting, you can extract the Ghostview widget and use it in
your application...