Path: utzoo!attcan!uunet!convex!killer!ames!pasteur!cory.Berkeley.EDU!koster
From: koster@cory.Berkeley.EDU (David Ashley)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Mouse movement
Message-ID: <5258@pasteur.Berkeley.EDU>
Date: 27 Aug 88 03:43:57 GMT
References: <8471@cup.portal.com>
Sender: news@pasteur.Berkeley.EDU
Reply-To: koster@cory.Berkeley.EDU.UUCP (David Ashley)
Organization: University of California, Berkeley
Lines: 29

In article <8471@cup.portal.com> MJB@cup.portal.com writes:
>In preferences, I have moved the "mouse speed ratio thingie" to get max 
>movement (most screen movement for the least physical movement), but the ratio
>    2) Could these current acceptable min and max values be changed with a
>       little hex editing?
>    3) If this (#2) is possible, could you point me in the right direction of
>       the values that would need to be changed? (library location?)
>                                  - Martin Brown -

The preferences structure is defined in intuition/intuition.i (or .h), and
there is a USHORT PointerTicks which is the sensitivity of the pointer.
Its offset is pf_PointerTicks at hex $6C.

Now my guess is that the devs:system-configuration is just a dump of the
preferences data. On my machine it is 232 bytes, which is exactly the size
of the pf_SIZEOF value ($E8). So you would modify the word at location $6c
in that file.

Just play around with it, see what happens. It is not enough to just change
the file; you will have to reboot to get the system to use the prefs.

An alternative is to write a small program that calls the intuition functions
GetPrefs() and SetPrefs(). You GetPrefs() to some buffer, modify location
$6C, and then do a SetPrefs(). Each call requires a bytecount, which tells
the system how many bytes to read/write from/to the internal preferences
storage.

koster@cory.berkeley.edu
David Ashley