Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!olivea!uunet!overload!dillon From: dillon@overload.Berkeley.CA.US (Matthew Dillon) Newsgroups: comp.sys.amiga.programmer Subject: Re: Mouse blanking Message-ID: Date: 8 May 91 19:54:05 GMT References: <9107@crash.cts.com> <91127.171511DXB132@psuvm.psu.edu> Organization: Not an Organization Lines: 32 In article <91127.171511DXB132@psuvm.psu.edu> DXB132@psuvm.psu.edu writes: >In article , mwm@pa.dec.com (Mike (My Watch >Has Windows) Meyer) says: > >You can also avoid this problem by using SetPrefs to blank instead of >turning off sprite DMA. Turning off sprite DMA is a pretty drastic >measure, after all. > >-- Dan Babcock Nope, doesn't work. A couple of problems with SetPrefs(): (1) Takes an incredible amount of CPU. Not something you want to do very often. (2) Buggy under 1.3 (not reliable, could crash the machine), effects many subsystems, including the printer I believe, as well as alerts programs requesting the appropriate class, which you don't want either. (3) Obsolete under 2.0, though probably still works for pointer data. (4) Only effects pointer when under workbench's control, does not effect application custom pointers. -Matt -- Matthew Dillon dillon@Overload.Berkeley.CA.US 891 Regal Rd. uunet.uu.net!overload!dillon Berkeley, Ca. 94708 USA