Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!mips!daver!ditka!zorch!amiga0!mykes From: mykes@amiga0.SF-Bay.ORG (Mike Schwartz) Newsgroups: comp.sys.amiga.programmer Subject: Re: Mouse blanking Message-ID: Date: 10 May 91 09:41:28 GMT References: <9107@crash.cts.com> Organization: Amiga makes it possible Lines: 40 In article dillon@overload.Berkeley.CA.US (Matthew Dillon) writes: >In article <9107@crash.cts.com> hawk@pnet01.cts.com (John Anderson) writes: >>>DMouse's only gotcha had to do with mouse blanking. I went direct to >>>the copper list on earlier versions of DMouse and this broke under 2.0 >>>(admittedly, I was doing something entirely illegal). By the time 2.0 >>>had come out I had already stuck a check in the code to not attempt to >>>blank the mouse if the copper list was not as expected. After some >>>discussion somebody came up with the bright idea, and I kick myself for >>>not thinking of it, of simply turning off sprite DMA to blank the >>>mouse. Entirely compatible and documented. Works great! And if it >>>ever breaks in the future you simply turn off that particular feature. >> >>Turning off sprite DMA to blank the mouse pointer may be good for some >>things but the people who wrote the few pointer blankers for 2.0 >>also turned off the cursor for JRComm (which is a sprite). So when >>the mouse pinter blanks so does the darn cursor!!! > > Yes, I know. Too bad. There is no other way to do it. You can always > turn the feature off (without effecting other features). Call it a > design decision if you will, but the majority of people who use DMouse > these days use it for the mouse blanking. The mouse acceleration also > generally used on 1.3 systems, but not as much under 2.0. > > -Matt > Why not check to see if you are running under 2.0 and work as a commodity? >-- > > Matthew Dillon dillon@Overload.Berkeley.CA.US > 891 Regal Rd. uunet.uu.net!overload!dillon > Berkeley, Ca. 94708 > USA -- **************************************************** * I want games that look like Shadow of the Beast * * but play like Leisure Suit Larry. * ****************************************************