Path: utzoo!utgpu!water!watmath!clyde!bellcore!rutgers!uwvax!vanvleck!uwmcsd1!ig!agate!ucbvax!decwrl!pyramid!prls!philabs!parrot!per From: per@parrot.Philips.Com (Paul E. Rutter) Newsgroups: comp.windows.news Subject: "reading the contents of a drawing surface" Message-ID: <30389@philabs.Philips.Com> Date: 11 Jul 88 18:07:23 GMT Sender: news@philabs.Philips.Com Lines: 13 In the June 88 issue of "Unix Review" magazine, there is an article by Samuel Leffler on NeWS. On page 69, there is a discussion of reading back the contents of an image once it's been rendered: this is not in postscript because it was designed for printers, it is needed for interactive displays, the usual solution is shadow data structures, which are tedious. Then he states that: "For this reason, the most recent release of NeWS (Version 1.1) provides PostScript extensions for reading the contents of a drawing surface" Can someone explain what these extensions are? We have a 1.1 manual here, but we have not received our full 1.1 documentation yet. It does not seem to be mentioned in the 1.1 manual itself.