info-mac@uw-beaver (info-mac) (08/29/84)
From: Hackerjack <Palevich%hp-labs.csnet@csnet-relay.arpa> Does anybody have any idea how QuickDraw's regions are implemented internally? Run length encoded bitmaps? Lists of q.d. primitives? Enclosing boundry chains? They're such a nice idea that I want to incorporate them into my own non-68000 gaphics routines. (The Apple QuickDraw documentation is excellent, but it does not document the internal representation of either regions or pictures. I suppose this is on purpose, since these structures took a long time to invent. . . .) I'm going try to determin how regions work by experimentation, next time I have a couple of days free, but I was wondering if anybody else has looked into this.... Jack Palevich -------
info-mac@uw-beaver (info-mac) (08/29/84)
From: winkler@harvard.ARPA (Dan Winkler) We went over this before. QuickDraw region internals are not documented anywhere because they are a secret.