I don't know if this relates or not. I use Freedos in a dosemu emulator in Linux. In that environment, arachne won't update a screen unless I hold down a moust button, or a shift key (or some key).
Have you tried holding down a shift key to see if your CAD then updates the screen faster? --- On Tue, 12/22/09, Marcos Favero Florence de Barros <fav...@mpcnet.com.br> wrote: > From: Marcos Favero Florence de Barros <fav...@mpcnet.com.br> > Subject: [Freedos-user] Odd behaviour involving mouse > To: "FreeDOS List" <freedos-user@lists.sourceforge.net> > Date: Tuesday, December 22, 2009, 6:13 AM > Hi, > > I'm an engineer and a user of DESI-III, a > professional-quality > freeware CAD from Belgium, with which I draw mechanical > parts for > a product I'm developing. > > Since I started using FreeDOS in 2007 I noticed that it > was > taking longer for DESI-III to refresh the screen -- an > important > point for CAD software, because we must zoom in and out all > the > time. > > Then a few days ago I noticed that, if the mouse is moved, > the > screen refreshes much faster. For instance, the drawing > I'm > currently working on would take 11 seconds to refresh, > whereas if > the mouse is slightly pushed in any direction while the > image is > appearing on the screen, the process takes only 2 seconds, > i.e., > it gets *five* times faster. > > Then last night I decided to run Desi-III under MS-DOS. I > reinstalled it in a spare hard drive, and it turned out > that the > speed difference is huge. Under MS-DOS the screen redraws > so fast > that couldn't measure the time. It must be something below > 0.2 > seconds for that same drawing, so we are talking about a > factor > of *fifty* here. > > I had already written to Desi-III's author Hugo Mari‰n > about > this. He answered: > > It is a surprisingly story you > are telling, because IMHO > it has nothing to do with > DESI-III but with your > configuration. > > [..] DESI-III only calls the > mouse on demand, it doesn't > need to call the mouse driver > when the screen is > refreshed someway or an other, > it only calls the mouse > when it needs displacements or > a button detection else > the mouse is "left alone". > > Back to FreeDOS, I did some simple testing, such as > changing the > mouse driver from CTMouse to Logitech, and changing the > mouse > itself, with no results. > > If there is any additional test that I could do, please let > me > know, and I'll report back ... after Christmas :-) > > Desi-III can be downloaded from: > > http://users.telenet.be/desi-iii > > Regards, > > Marcos > > -------------------------------- > Marcos Favero Florence de Barros > Sao Paulo, Brazil > 55-19-3231-8194 > fav...@mpcnet.com.br > > > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer > Community > Take advantage of Verizon's best-in-class app development > support > A streamlined, 14 day to market process makes app > distribution fast and easy > Join now and get one step closer to millions of Verizon > customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
