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MAUS.DOC
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1994-02-03
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The mouse and the Psion Series 3(a) .. by Marko Schuster 1993
-------------------------------------------------------------
(Translated into english in 1994)
Files in Archive: (files are german words..)
Maus3.* - Example for Series3
Maus3a.* - Example for Series3a
Kreuz.pic - Sprite for S3a, must be in M:\pic\sprites (see Maus3a.opl!)
Note to the prg: drawing by pressing the left mouse-button
A mouse on the S3? This should work? Of course.. Of course the prg. must
be programmed to accept a mouse as input. That means, you can only
use a mouse if a programmer writes his prg. so that you can use the
mouse. Assembler-hackers may try to get into the system-keyboard-interrupt
and make a prg. to emulate the cursor-keys for example and so be able
to use the mouse in all applications (mousebuttons may be ESC/MENU/ENTER..)
The mouse .. it must be a serial PC-mouse. Mouses for Amiga/C64/Atari/..
will not work. To use a mouse, it must be connected with the serial
link of the S3(a). But between both you need a (null)modem-adapter
(changes SD&RD, DTR&DSR, RTS&CTS). An other solution is to make your
own cable or to change the pins directly on the S3-Link-cable (for example,
i have cut the 9pin-connector and have made a 9pin-connecter which i can
directly connect with my mouse. Note if you do this: be sure that the
other connector is NOT connected to your PC! It wouldn't work.. if
all Serial links have the same colors on their pins, such a new 9pin-
connecter must be make as followed:
Pin Color
1 empty
2 brown
3 red
4 black
5 blue & shield
6 green
7 yellow
8 orange
9 empty
!! I make no warranty if this is correct. I make no warrenty if you damage
your PSION !!
The problem:
A serial mouse works with 1200 Baud, so we must open the serial with
1200 Baud. 2. There seems to be different mouses. I have an Amiga and a
PC-Card, so i don't know much about PC-mouses, but on my mouse i can
choose between "2-buttons (Microsoft-Mouse)" and "3-buttons (Mouse System-
Mouse)". All informations I know are related to the last one! You must have
a 3-button-mouse if you want to try my prgs.!
Actually I don't know how to check if there is a char on the serial port,
so the prg. cannot get keypresses/events if it waits for an input on
the serial port !!
The mouse sends for each movement 5 Bytes. Each movement may contain
more pixels & more directions. The movements are in the last 4 Bytes,
in the first byte is the status of the mouse-buttons. These codes
(all decimal!) can be found at the first byte:
128 : all mouse buttons pressed
129 : left and middle button pressed
130 : left and right pressed
131 : left pressed
132 : middle and right pressed
133 : middle pressed
134 : right pressed
135 : no button pressed
Directions&Movements: look in the OPL-Source for these informations.
..written by .. Marko Schuster 12/93, translated to english 2/94
EMAIL to: ns103@fim.uni-erlangen.de