🚀 go-pugleaf

In article <1991Jun20.053653.20412@sci.ccny.cuny.edu>,
kly@sci.ccny.cuny.edu (Gregory Kozlovsky) writes:
|> I would like to create a Postscript file which would be printed
|> differently on color and black&white printers. For example, lines
|> which have different colors on a color printer should be drawn with
|> different dash patterns on black&white one. What is the correct way
|> to ask the printer?  I would prefer not to use level 2 features.

I do it by testing whether the PostScript interpreter knows about the
setcolorscreen operator:

(This is ) print
systemdict /setcolorscreen known
{
    (a)
}
{
    (no)
}
ifelse
print

-- 
  Dipl.-Inform. Rainer Klute      klute@irb.informatik.uni-dortmund.de
  Univ. Dortmund, IRB             klute@unido.uucp, klute@unido.bitnet
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