Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!godzilla.pa.dec.com!kent From: kent@godzilla.pa.dec.com (Christopher A. Kent) Newsgroups: comp.lang.postscript Subject: Re: Copying image patches Message-ID: <2383@bacchus.dec.com> Date: 3 Jan 90 01:49:23 GMT References: <18731@bellcore.bellcore.com> <28@macuni.mqcc.mq.oz> <1989Dec21.000312.3330@ico.isc.com> <17480@rpp386.cactus.org> <1651@intercon.com> Sender: news@decwrl.dec.com Reply-To: kent@godzilla.pa.dec.com (Christopher A. Kent) Organization: DEC Western Software Laboratory Lines: 11 DPS doesn't need to have copyarea because the window system that incorporates DPS can supply it instead. In the DECwindows implementation, you use DPS to image into an X drawable (either Pixmap or window) and use XCopyArea to do all the copying you want to. Or you can use the resulting image as an X clipmask. Or whatever suits your fancy. NeXT chose to expose their windowing operations as PostScript operators, so it looks like they're just part of DPS. Chris Kent Western Software Laboratory Digital Equipment Corporation kent@decwrl.dec.com decwrl!kent (415) 853-6639