Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!uflorida!gatech!rutgers!apple!jrg From: jrg@Apple.COM (John R. Galloway) Newsgroups: comp.windows.x Subject: Re: unexpose events? Message-ID: <21703@apple.Apple.COM> Date: 5 Dec 88 20:45:04 GMT References: <7978@pasteur.Berkeley.EDU> Organization: Galloway Research, a COG Ltd affilate Lines: 16 In article <7978@pasteur.Berkeley.EDU> anton@postgres.UUCP (Jeff Anton) writes: > What I would like to do is to have my program be informed >when its window becomes obscured in a certain region so I don't have >to waste computrons on unexposed window regions. > Jeff Anton Instead of initializing to computing for all pixels and getting events for regions not to work on, just do the reverse: assume there is nothing to do, and as you get expose events add the region specified in the event to the list of stuff to work on (compressing rectangles, and avoiding duplicates etc.). apple!jrg John R. Galloway, Jr. contract programmer, San Jose, Ca These are my views, NOT Apple's, I am a GUEST here, not an employee!!