gl to Postscript or HP Laserjet

[Bernhard Hofmann]

Hallo everybody !
Is there a way to get graphics that I have on my screen to a
laserprinter. I don't want to use tools like snapshot + tops
as they print the actual pixel off the screen (bad resolution
on the printer).
What I'm looking for is some sort of device driver that can
be called from my gl-program.
Using DIGL for example is not quite what I need, because there
don't seem to exist calls to double buffering, polymodes, ...
for drawing to the IRIS screen.
I'd like to have a possibility to move objects around on the
screen, then press a button and get a high quality hardcopy
of what I see on the screen.

Thanks ahead for any hints
Bernhard