Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!sunic!kth.se!cyklop.nada.kth.se!news From: d88-jwa@cyklop.nada.kth.se (Jon W{tte) Newsgroups: comp.sys.mac.programmer Subject: Re: Question: scrolling in a window Message-ID: Date: 18 Mar 91 13:39:28 GMT References: <1991Mar14.021122.292@husc3.harvard.edu> <1991Mar15.032155.305@husc3.harvard.edu> <1991Mar15.204959.29076@kuhub.cc.ukans.edu> Sender: news@nada.kth.se (Mr News) Organization: Royal Institute of Technology, Stockholm, Sweden Lines: 15 In-reply-to: 2fmlcalls@kuhub.cc.ukans.edu's message of 16 Mar 91 02:49:59 GMT In article <1991Mar15.204959.29076@kuhub.cc.ukans.edu> 2fmlcalls@kuhub.cc.ukans.edu writes: For speed, ScrollRect is no faster (and maybe even a little slower) that a CopyBits from an offscreen port/bitMap. If the whole drawing is offscreen Except if you have an accelerated bit-blitting graphics card, that is... That's why the traps are there, to allow future extensions to enhance old programs too. h+@nada.kth.se Jon W{tte -- "The IM-IV file manager chapter documents zillions of calls, all of which seem to do almost the same thing and none of which seem to do what I want them to do." -- Juri Munkki in comp.sys.mac.programmer