From: mert0407 AT sable DOT ox DOT ac DOT uk (George Foot)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Allegro - Mouse Problems
Date: Sun, 17 Aug 1997 19:24:27 GMT
Organization: [posted via] Easynet Group PLC
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On Fri, 08 Aug 1997 03:13:25 GMT, wisher AT ms6 DOT hinet DOT net (Wisher) wrote:

><"Ingo Ruhnke" <ruhnke AT owl-online DOT de>>:
>>> Is your mouse a Logitech one?
>>
>>Yes, it is a Logitech Mouseman.
>>I discoverd now that the mouse is under MS-DOS 7 fast enough, only under
>>Win95 it gets too slow. So, I think it's more a Win95 problem, then an
>>Allegro.

It's not Allegro since other applications suffer too, and yes, it does
only seem to occur when running Windows (95).

>If you don't need very precise mouse position feedback, (e.g. just
>want a normal-speed mouse to use grabber.exe), here is a DIRTY fix:
...
>Any suggestion about how to complete the fix?

Would it be possible to use the mickey reading instead of the absolute
location, and update an internal location inside the code? This way
the mouse sensitivity would be more adjustable in general, since
mickeys are pretty fine units, and it shouldn't be hard to code,
either.

I can't try this out since I'm going away, but I thought of a few
possible problems:

[1] Is it possible to call the mouse interrupt inside another
interrupt? My knowledge of the hardware is a little lacking here. 

[2] Does the mouse driver call the callback function whenever the
mouse moves, or just whenever it thinks the cursor should move? In the
latter case some timer poll would be required (if [1] allows it), and
might end up being too strenuous on the system.

-- 
george DOT foot AT merton DOT oxford DOT ac DOT uk