Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!sun-barr!texsun!pollux!ti-csl!m2!holland From: holland@m2.csc.ti.com (Fred Hollander) Newsgroups: comp.sys.mac.programmer Subject: Re: Alternate screen buffer ... How? Message-ID: <81705@ti-csl.csc.ti.com> Date: 20 Jun 89 19:48:44 GMT References: <8042@cc.nu.oz> <227700007@uxa.cso.uiuc.edu> Sender: news@ti-csl.csc.ti.com Reply-To: holland@m2.UUCP (Fred Hollander) Organization: TI Computer Science Center, Dallas Lines: 15 In article <227700007@uxa.cso.uiuc.edu> cjr20670@uxa.cso.uiuc.edu writes: > >you to pursue this because the Mac ]['s don't have alternate screen buffers >and have different VBL routines to deal with multiple screens. Oh, lastly, >the simplist way to get a VBL lock is to just watch tickCount till it >changes, then do what you need (like CopyBits). This allows your program I may be wrong, but, I don't beleive that this is necessary on Mac II's. Fred Hollander Computer Science Center Texas Instruments, Inc. hollander@ti.com The above statements are my own and not representative of Texas Instruments.