Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: Control Panel disable
Message-ID: <35229@apple.Apple.COM>
Date: 3 Oct 89 18:38:43 GMT
References: <8910020218.AA12553@trout.nosc.mil>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 37

In article <8910020218.AA12553@trout.nosc.mil> jlai@pro-sol.cts.com (Jack Lai) writes:
>
>Howzit!
>
>        For all of you looking for a way to disable control panel access,
>I accidently found a solution.  First, I am using a IIGS with ROM version
>01.  For some reason, doing a call to print the computer name ($FB60) will
>disable the control panel until someone does a control-reset.
>
>        From basic: ]Call 64352
>
>        From the monitor: *FB60G
>
>        From assembler: JSR $FB60
>
>        Latas, Jack

I just tried this on my two favorite machines:

On ROM 01, it apparently initialized a lot of system vectors that it probably
should not have touched.  This did indeed prevent me from getting into the
control panel, but it also made my machine pretty much go bonkers.  Had to
reboot.

On ROM 3 it just printed Apple IIgs at the top of the screen as expected,
without preventing control panel access or messing up anything else.

(Obviously, this is not a supported way to prevent control panel access.)
-- 

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
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