Apple II Computer Info
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### FILE : graphics.tablet
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### Created : Friday, September 27, 1996 Modified: Friday, September 27, 1996
### File Type: "TEXT" File Creator: "LMAN"
### File Size: 3350 bytes 3 KB
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Path: news.uiowa.edu!chi-
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Newsgroups: comp.sys.apple2
Subject: Re: Apple Graphics Tablet
Date: Wed, 12 Jun 1996 08:25:43 GMT
Organization: powerframe Datensysteme GmbH
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>I had a similar question. I recently was given an Apple Graphics Tablet in
>_mint_ condition. Interface card and everything, but no software. Does anyone
>know how to write programs which can use it? I looked in our library of Apple
>tech notes but came up empty.
Hi,
first, let's make sure we're talking about the same thing: the Apple
Graphics Tablet I know of is rather large and heavy; its pen is
attached to it with a (too short) cable; it makes funny sounds that
change when the pen is moved in/out the reach of of the tablet.
A long time ago I patched a few programs to make use of this tablet.
To make it clear in the first place - I don't have theese patched
versions available anymore :-(. But I found a listing from which I can
tell You this:
To detect to interface card, I looped over all slots to check in its
firmware for
$B0 at location $Cx01 and
$20 at location $Cx09
beeing x the slot number. I never found this 'signature' in any other
firmware.
To check for the pen position one has to poll the tablet (again beeing
x the slot number):
Apple II Computer Technical Information : Apple II Family Hardware Info
ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 178 of 572
(22 pages)
(16 pages)
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