Home » Archimedes archive » Acorn User » AU 1994-11.adf » !DeskUtils_DeskUtils » !Scaler/!Help

!Scaler/!Help

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

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                               Mouse Scaler

                               Version 2.04

                    For Risc OS 2.00, 3.10 and 3.50...
                      ...and possibly 3.11 and 3.12!

                         � Nick Jarman 1991-1994


***************************************************************************
****   If Mouse Scaler doesn't work on your machine, perhaps you can   ****
****      help... see the section 'Users of unsupported machines'      ****
****                   near the end of this file.                      ****
***************************************************************************


About the Program
-----------------

Under Risc OS, the relationship between the position of the mouse and the
pointer on the screen is always the same. Moving the mouse a set distance
will always cause the pointer to move a set (and related) distance on the
screen. On other computer systems, such as the PC and Apple Mac, the
relationship between mouse and pointer movement varies with the speed at
which the mouse is moved. The faster the mouse is moved, the greater the
distance the pointer will move on the screen. This allows the pointer to be
moved from one side of the screen to the other with a quick flick of the
mouse, but pixel accuracy is maintained at low speeds.

When I started using Risc OS 2, I thought, 'Surely the next release of the
operating system will have variable mouse scaling...'. When Risc OS 3
appeared I was surprised to find it didn't. I was slightly less surprised
that it's still missing from Risc OS 3.5, nearly three years after my first
release of Mouse Scaler.

The Mouse Scaler module implements variable mouse scaling under the three
versions of Risc OS I have used over the years:

 - Risc OS 2.00
 - Risc OS 3.10   (It may work with 3.11 and 3.12 as well, but no guarantees)
 - Risc OS 3.50

The version of Risc OS is detected automatically. If it is not one of those
listed above, Mouse Scaler will complain and shut itself down.


How to run it
-------------

To run Mouse Scaler, just double-click on it. If you want it to load as part
of your boot sequence, put a command to run the !Scaler application in it.
Alternatively, to save space (and make the boot sequence a bit faster), take
the MouseScale file out of the !Scaler application and run that directly!
(but if you give a copy of Mouse Scaler to anyone else, remember to give
them the entire application)

You may find the pointer just moves too fast at first. If this is the case,
use the Configure application supplied with your machine to set the mouse
to the slowest or second slowest speed possible. My preference is the
slowest, which makes the mouse comfortble to use in displays between 640x256
and 1600x1200 pixels... which should be adequete for most situations!

Mouse Scaler does not provide any additional * commands; it starts working as
soon as it's loaded. The only way to disable it is to kill the module - press
F12 and type:

     *RMKill MouseScaler

That's all there is to it - it's loaded on my machine all the time, because I
find the mouse almost unusable without it. You may find that it upsets some
games which read and then reset the mouse position. If this happens, kill the
Mouse Scaler module before running the game and reload it afterwards. During
the thousands of hours I've used it I have never experienced any hardware or
software clashes which could have been caused by the use of Mouse Scaler, so
you can be confident that it is relatively bug-free!


Serial mouse support
--------------------

I have not yet been able to test Mouse Scaler with a serial mouse connected
to a Risc PC (or any other machine) yet, so I have no idea what will happen
in this instance. I would be interested to hear from anyone who is able to
confirm that it does or does not work!


History (and technical bits)
----------------------------

v1.00 (Sun,27 Oct 1991)
     Mouse Scaler module for Risc OS 2.00 - very basic, because I thought it
     was just a temporary fix until the next version of Risc OS was released.
v2.01 (Mon,16 Mar 1992) - Modified by Roger Spooner
     Difference in mouse position is now squared for faster acelleration.
     Also runs on Vsync and recognises screen size. Risc OS 2.00 only.
<Unnamed versions> (Not released)
     Based on v1.00 and modified to work with Risc OS 3.00 only.
v2.02 (Wed,13 Jul 1994)
     Based v2.01 and modified for Risc OS 3.50 only. Minor bug fixes to
     initialisation and finalisation code.
v2.03 (Sat,13 Aug 1994)
     A (nearly) complete rewrite of v2.02:
     - Instead of restricting mouse to an area the size of the screen, the
       currently defined mouse rectangle is used. The effect of this can be
       seen when an error message window is displayed - the pointer used to
       'bounce' off the edge of the window if it was moved very fast.
     - The Mouse OS Word call is intercepted so that when the position is
       changed, the resulting movement isn't scaled. Before this was done,
       any manual setting of the mouse position was translated to something
       meaningless, and where the pointer ended up was anyone's guess!
     - Finally, parts of the code were changed so as not to store any
       variables within the module, 'cos it's bad practice :-)
     For Risc OS 3.50 only.
v2.04 (Fri,19 Aug 1994)
     An update of version 2.03. This works on Risc OS 2.00, 3.10 and 3.50
     (and possibly 3.11 and 3.12). The operating system version is detected
     automatically, making the module 'plug-in-and-play'.


Testing
-------

Mouse Scaler has been tested with the following machine/operating system
combinations:

     Machine     OS
     R140        Risc OS 2.00
     A400/1      Risc OS 3.10
     Risc PC     Risc OS 3.50


Further development
-------------------

At least one more release of Mouse Scaler is planned, in which I hope to
support all versions of Risc OS since version 2.00. I can't do this without
some help though, so read on...


Users of unsupported machines
-----------------------------

This section is for hackers/techies who want the version of Risc OS they use
to be supported by Mouse Scaler...

If Mouse Scaler reports that it cannot initialise because it's not compatible
with your version of Risc OS, I would be grateful if you could attempt to
find the location of the mouse pointer information. It's usually somewhere
between &5A0 and &5C0. I need to know where the following pieces of
information are kept:

     Mouse X position
     Mouse Y position

     Mouse rectangle minimum X co-ordinate
     Mouse rectangle minimum Y co-ordinate
     Mouse rectangle maximum X co-ordinate
     Mouse rectangle maximum Y co-ordinate

They are likely to be in two chunks, as shown above.

Mouse X and Y are easy to find - just set the mouse position to a known value
(eg: MOUSE TO 640,512) and then search for two adjacent words in memory
containing those values. Obviously, don't move the mouse while you're
searching, and don't use a memory viewer that resets the mouse position!

To find the rectangle co-ordinates, try something like:

     MOUSE RECTANGLE 200,200,200,200

then search for four adjacent words containing 200,200,400,400.

Finally, I need to know which version of Risc OS you have, and the number
returned by:

     PRINT INKEY-256

Thanks!


Acknowledgement
---------------

The calculations for scaling mouse movements are from Roger Spooner's updated
version of the original Mouse Scaler - they were better than anything I could
come up with!


Mouse Sclaer is distributed under the Acorn User PD Scheme
----------------------------------------------------------

The application may not be copied or distributed to any third party until
three months after publication of this issue of Acorn User, i.e. until
6th January 1995. After that rights to the program revert to the author,
and the program may be distributed subject to the following conditions:

This application may be freely distributed as long as it is not altered in
any way, and no profit is made doing so. If you use Mouse Scaler, you do so
entirely at your own risk.

If you intend to distribute Mouse Scaler through a public domain software
library, please obtain my permission first. This way I can ensure you have
the latest version of the software, and that you are kept up to date
regarding any significant changes.


The Author
----------

Comments and suggestions are welcome. Send them to this address:

      Nick Jarman
      7 Cadet Way
      Church Crookham
      FLEET
      Hants
      GU13 0UG
      UK
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00000af0  75 61 74 69 6f 6e 73 21  0a 0a 4d 6f 75 73 65 20  |uations!..Mouse |
00000b00  53 63 61 6c 65 72 20 64  6f 65 73 20 6e 6f 74 20  |Scaler does not |
00000b10  70 72 6f 76 69 64 65 20  61 6e 79 20 61 64 64 69  |provide any addi|
00000b20  74 69 6f 6e 61 6c 20 2a  20 63 6f 6d 6d 61 6e 64  |tional * command|
00000b30  73 3b 20 69 74 20 73 74  61 72 74 73 20 77 6f 72  |s; it starts wor|
00000b40  6b 69 6e 67 20 61 73 0a  73 6f 6f 6e 20 61 73 20  |king as.soon as |
00000b50  69 74 27 73 20 6c 6f 61  64 65 64 2e 20 54 68 65  |it's loaded. The|
00000b60  20 6f 6e 6c 79 20 77 61  79 20 74 6f 20 64 69 73  | only way to dis|
00000b70  61 62 6c 65 20 69 74 20  69 73 20 74 6f 20 6b 69  |able it is to ki|
00000b80  6c 6c 20 74 68 65 20 6d  6f 64 75 6c 65 20 2d 20  |ll the module - |
00000b90  70 72 65 73 73 0a 46 31  32 20 61 6e 64 20 74 79  |press.F12 and ty|
00000ba0  70 65 3a 0a 0a 20 20 20  20 20 2a 52 4d 4b 69 6c  |pe:..     *RMKil|
00000bb0  6c 20 4d 6f 75 73 65 53  63 61 6c 65 72 0a 0a 54  |l MouseScaler..T|
00000bc0  68 61 74 27 73 20 61 6c  6c 20 74 68 65 72 65 20  |hat's all there |
00000bd0  69 73 20 74 6f 20 69 74  20 2d 20 69 74 27 73 20  |is to it - it's |
00000be0  6c 6f 61 64 65 64 20 6f  6e 20 6d 79 20 6d 61 63  |loaded on my mac|
00000bf0  68 69 6e 65 20 61 6c 6c  20 74 68 65 20 74 69 6d  |hine all the tim|
00000c00  65 2c 20 62 65 63 61 75  73 65 20 49 0a 66 69 6e  |e, because I.fin|
00000c10  64 20 74 68 65 20 6d 6f  75 73 65 20 61 6c 6d 6f  |d the mouse almo|
00000c20  73 74 20 75 6e 75 73 61  62 6c 65 20 77 69 74 68  |st unusable with|
00000c30  6f 75 74 20 69 74 2e 20  59 6f 75 20 6d 61 79 20  |out it. You may |
00000c40  66 69 6e 64 20 74 68 61  74 20 69 74 20 75 70 73  |find that it ups|
00000c50  65 74 73 20 73 6f 6d 65  0a 67 61 6d 65 73 20 77  |ets some.games w|
00000c60  68 69 63 68 20 72 65 61  64 20 61 6e 64 20 74 68  |hich read and th|
00000c70  65 6e 20 72 65 73 65 74  20 74 68 65 20 6d 6f 75  |en reset the mou|
00000c80  73 65 20 70 6f 73 69 74  69 6f 6e 2e 20 49 66 20  |se position. If |
00000c90  74 68 69 73 20 68 61 70  70 65 6e 73 2c 20 6b 69  |this happens, ki|
00000ca0  6c 6c 20 74 68 65 0a 4d  6f 75 73 65 20 53 63 61  |ll the.Mouse Sca|
00000cb0  6c 65 72 20 6d 6f 64 75  6c 65 20 62 65 66 6f 72  |ler module befor|
00000cc0  65 20 72 75 6e 6e 69 6e  67 20 74 68 65 20 67 61  |e running the ga|
00000cd0  6d 65 20 61 6e 64 20 72  65 6c 6f 61 64 20 69 74  |me and reload it|
00000ce0  20 61 66 74 65 72 77 61  72 64 73 2e 20 44 75 72  | afterwards. Dur|
00000cf0  69 6e 67 0a 74 68 65 20  74 68 6f 75 73 61 6e 64  |ing.the thousand|
00000d00  73 20 6f 66 20 68 6f 75  72 73 20 49 27 76 65 20  |s of hours I've |
00000d10  75 73 65 64 20 69 74 20  49 20 68 61 76 65 20 6e  |used it I have n|
00000d20  65 76 65 72 20 65 78 70  65 72 69 65 6e 63 65 64  |ever experienced|
00000d30  20 61 6e 79 20 68 61 72  64 77 61 72 65 20 6f 72  | any hardware or|
00000d40  0a 73 6f 66 74 77 61 72  65 20 63 6c 61 73 68 65  |.software clashe|
00000d50  73 20 77 68 69 63 68 20  63 6f 75 6c 64 20 68 61  |s which could ha|
00000d60  76 65 20 62 65 65 6e 20  63 61 75 73 65 64 20 62  |ve been caused b|
00000d70  79 20 74 68 65 20 75 73  65 20 6f 66 20 4d 6f 75  |y the use of Mou|
00000d80  73 65 20 53 63 61 6c 65  72 2c 20 73 6f 0a 79 6f  |se Scaler, so.yo|
00000d90  75 20 63 61 6e 20 62 65  20 63 6f 6e 66 69 64 65  |u can be confide|
00000da0  6e 74 20 74 68 61 74 20  69 74 20 69 73 20 72 65  |nt that it is re|
00000db0  6c 61 74 69 76 65 6c 79  20 62 75 67 2d 66 72 65  |latively bug-fre|
00000dc0  65 21 0a 0a 0a 53 65 72  69 61 6c 20 6d 6f 75 73  |e!...Serial mous|
00000dd0  65 20 73 75 70 70 6f 72  74 0a 2d 2d 2d 2d 2d 2d  |e support.------|
00000de0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 0a 0a  |--------------..|
00000df0  49 20 68 61 76 65 20 6e  6f 74 20 79 65 74 20 62  |I have not yet b|
00000e00  65 65 6e 20 61 62 6c 65  20 74 6f 20 74 65 73 74  |een able to test|
00000e10  20 4d 6f 75 73 65 20 53  63 61 6c 65 72 20 77 69  | Mouse Scaler wi|
00000e20  74 68 20 61 20 73 65 72  69 61 6c 20 6d 6f 75 73  |th a serial mous|
00000e30  65 20 63 6f 6e 6e 65 63  74 65 64 0a 74 6f 20 61  |e connected.to a|
00000e40  20 52 69 73 63 20 50 43  20 28 6f 72 20 61 6e 79  | Risc PC (or any|
00000e50  20 6f 74 68 65 72 20 6d  61 63 68 69 6e 65 29 20  | other machine) |
00000e60  79 65 74 2c 20 73 6f 20  49 20 68 61 76 65 20 6e  |yet, so I have n|
00000e70  6f 20 69 64 65 61 20 77  68 61 74 20 77 69 6c 6c  |o idea what will|
00000e80  20 68 61 70 70 65 6e 0a  69 6e 20 74 68 69 73 20  | happen.in this |
00000e90  69 6e 73 74 61 6e 63 65  2e 20 49 20 77 6f 75 6c  |instance. I woul|
00000ea0  64 20 62 65 20 69 6e 74  65 72 65 73 74 65 64 20  |d be interested |
00000eb0  74 6f 20 68 65 61 72 20  66 72 6f 6d 20 61 6e 79  |to hear from any|
00000ec0  6f 6e 65 20 77 68 6f 20  69 73 20 61 62 6c 65 20  |one who is able |
00000ed0  74 6f 0a 63 6f 6e 66 69  72 6d 20 74 68 61 74 20  |to.confirm that |
00000ee0  69 74 20 64 6f 65 73 20  6f 72 20 64 6f 65 73 20  |it does or does |
00000ef0  6e 6f 74 20 77 6f 72 6b  21 0a 0a 0a 48 69 73 74  |not work!...Hist|
00000f00  6f 72 79 20 28 61 6e 64  20 74 65 63 68 6e 69 63  |ory (and technic|
00000f10  61 6c 20 62 69 74 73 29  0a 2d 2d 2d 2d 2d 2d 2d  |al bits).-------|
00000f20  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00000f30  2d 2d 2d 2d 2d 0a 0a 76  31 2e 30 30 20 28 53 75  |-----..v1.00 (Su|
00000f40  6e 2c 32 37 20 4f 63 74  20 31 39 39 31 29 0a 20  |n,27 Oct 1991). |
00000f50  20 20 20 20 4d 6f 75 73  65 20 53 63 61 6c 65 72  |    Mouse Scaler|
00000f60  20 6d 6f 64 75 6c 65 20  66 6f 72 20 52 69 73 63  | module for Risc|
00000f70  20 4f 53 20 32 2e 30 30  20 2d 20 76 65 72 79 20  | OS 2.00 - very |
00000f80  62 61 73 69 63 2c 20 62  65 63 61 75 73 65 20 49  |basic, because I|
00000f90  20 74 68 6f 75 67 68 74  20 69 74 0a 20 20 20 20  | thought it.    |
00000fa0  20 77 61 73 20 6a 75 73  74 20 61 20 74 65 6d 70  | was just a temp|
00000fb0  6f 72 61 72 79 20 66 69  78 20 75 6e 74 69 6c 20  |orary fix until |
00000fc0  74 68 65 20 6e 65 78 74  20 76 65 72 73 69 6f 6e  |the next version|
00000fd0  20 6f 66 20 52 69 73 63  20 4f 53 20 77 61 73 20  | of Risc OS was |
00000fe0  72 65 6c 65 61 73 65 64  2e 0a 76 32 2e 30 31 20  |released..v2.01 |
00000ff0  28 4d 6f 6e 2c 31 36 20  4d 61 72 20 31 39 39 32  |(Mon,16 Mar 1992|
00001000  29 20 2d 20 4d 6f 64 69  66 69 65 64 20 62 79 20  |) - Modified by |
00001010  52 6f 67 65 72 20 53 70  6f 6f 6e 65 72 0a 20 20  |Roger Spooner.  |
00001020  20 20 20 44 69 66 66 65  72 65 6e 63 65 20 69 6e  |   Difference in|
00001030  20 6d 6f 75 73 65 20 70  6f 73 69 74 69 6f 6e 20  | mouse position |
00001040  69 73 20 6e 6f 77 20 73  71 75 61 72 65 64 20 66  |is now squared f|
00001050  6f 72 20 66 61 73 74 65  72 20 61 63 65 6c 6c 65  |or faster acelle|
00001060  72 61 74 69 6f 6e 2e 0a  20 20 20 20 20 41 6c 73  |ration..     Als|
00001070  6f 20 72 75 6e 73 20 6f  6e 20 56 73 79 6e 63 20  |o runs on Vsync |
00001080  61 6e 64 20 72 65 63 6f  67 6e 69 73 65 73 20 73  |and recognises s|
00001090  63 72 65 65 6e 20 73 69  7a 65 2e 20 52 69 73 63  |creen size. Risc|
000010a0  20 4f 53 20 32 2e 30 30  20 6f 6e 6c 79 2e 0a 3c  | OS 2.00 only..<|
000010b0  55 6e 6e 61 6d 65 64 20  76 65 72 73 69 6f 6e 73  |Unnamed versions|
000010c0  3e 20 28 4e 6f 74 20 72  65 6c 65 61 73 65 64 29  |> (Not released)|
000010d0  0a 20 20 20 20 20 42 61  73 65 64 20 6f 6e 20 76  |.     Based on v|
000010e0  31 2e 30 30 20 61 6e 64  20 6d 6f 64 69 66 69 65  |1.00 and modifie|
000010f0  64 20 74 6f 20 77 6f 72  6b 20 77 69 74 68 20 52  |d to work with R|
00001100  69 73 63 20 4f 53 20 33  2e 30 30 20 6f 6e 6c 79  |isc OS 3.00 only|
00001110  2e 0a 76 32 2e 30 32 20  28 57 65 64 2c 31 33 20  |..v2.02 (Wed,13 |
00001120  4a 75 6c 20 31 39 39 34  29 0a 20 20 20 20 20 42  |Jul 1994).     B|
00001130  61 73 65 64 20 76 32 2e  30 31 20 61 6e 64 20 6d  |ased v2.01 and m|
00001140  6f 64 69 66 69 65 64 20  66 6f 72 20 52 69 73 63  |odified for Risc|
00001150  20 4f 53 20 33 2e 35 30  20 6f 6e 6c 79 2e 20 4d  | OS 3.50 only. M|
00001160  69 6e 6f 72 20 62 75 67  20 66 69 78 65 73 20 74  |inor bug fixes t|
00001170  6f 0a 20 20 20 20 20 69  6e 69 74 69 61 6c 69 73  |o.     initialis|
00001180  61 74 69 6f 6e 20 61 6e  64 20 66 69 6e 61 6c 69  |ation and finali|
00001190  73 61 74 69 6f 6e 20 63  6f 64 65 2e 0a 76 32 2e  |sation code..v2.|
000011a0  30 33 20 28 53 61 74 2c  31 33 20 41 75 67 20 31  |03 (Sat,13 Aug 1|
000011b0  39 39 34 29 0a 20 20 20  20 20 41 20 28 6e 65 61  |994).     A (nea|
000011c0  72 6c 79 29 20 63 6f 6d  70 6c 65 74 65 20 72 65  |rly) complete re|
000011d0  77 72 69 74 65 20 6f 66  20 76 32 2e 30 32 3a 0a  |write of v2.02:.|
000011e0  20 20 20 20 20 2d 20 49  6e 73 74 65 61 64 20 6f  |     - Instead o|
000011f0  66 20 72 65 73 74 72 69  63 74 69 6e 67 20 6d 6f  |f restricting mo|
00001200  75 73 65 20 74 6f 20 61  6e 20 61 72 65 61 20 74  |use to an area t|
00001210  68 65 20 73 69 7a 65 20  6f 66 20 74 68 65 20 73  |he size of the s|
00001220  63 72 65 65 6e 2c 20 74  68 65 0a 20 20 20 20 20  |creen, the.     |
00001230  20 20 63 75 72 72 65 6e  74 6c 79 20 64 65 66 69  |  currently defi|
00001240  6e 65 64 20 6d 6f 75 73  65 20 72 65 63 74 61 6e  |ned mouse rectan|
00001250  67 6c 65 20 69 73 20 75  73 65 64 2e 20 54 68 65  |gle is used. The|
00001260  20 65 66 66 65 63 74 20  6f 66 20 74 68 69 73 20  | effect of this |
00001270  63 61 6e 20 62 65 0a 20  20 20 20 20 20 20 73 65  |can be.       se|
00001280  65 6e 20 77 68 65 6e 20  61 6e 20 65 72 72 6f 72  |en when an error|
00001290  20 6d 65 73 73 61 67 65  20 77 69 6e 64 6f 77 20  | message window |
000012a0  69 73 20 64 69 73 70 6c  61 79 65 64 20 2d 20 74  |is displayed - t|
000012b0  68 65 20 70 6f 69 6e 74  65 72 20 75 73 65 64 20  |he pointer used |
000012c0  74 6f 0a 20 20 20 20 20  20 20 27 62 6f 75 6e 63  |to.       'bounc|
000012d0  65 27 20 6f 66 66 20 74  68 65 20 65 64 67 65 20  |e' off the edge |
000012e0  6f 66 20 74 68 65 20 77  69 6e 64 6f 77 20 69 66  |of the window if|
000012f0  20 69 74 20 77 61 73 20  6d 6f 76 65 64 20 76 65  | it was moved ve|
00001300  72 79 20 66 61 73 74 2e  0a 20 20 20 20 20 2d 20  |ry fast..     - |
00001310  54 68 65 20 4d 6f 75 73  65 20 4f 53 20 57 6f 72  |The Mouse OS Wor|
00001320  64 20 63 61 6c 6c 20 69  73 20 69 6e 74 65 72 63  |d call is interc|
00001330  65 70 74 65 64 20 73 6f  20 74 68 61 74 20 77 68  |epted so that wh|
00001340  65 6e 20 74 68 65 20 70  6f 73 69 74 69 6f 6e 20  |en the position |
00001350  69 73 0a 20 20 20 20 20  20 20 63 68 61 6e 67 65  |is.       change|
00001360  64 2c 20 74 68 65 20 72  65 73 75 6c 74 69 6e 67  |d, the resulting|
00001370  20 6d 6f 76 65 6d 65 6e  74 20 69 73 6e 27 74 20  | movement isn't |
00001380  73 63 61 6c 65 64 2e 20  42 65 66 6f 72 65 20 74  |scaled. Before t|
00001390  68 69 73 20 77 61 73 20  64 6f 6e 65 2c 0a 20 20  |his was done,.  |
000013a0  20 20 20 20 20 61 6e 79  20 6d 61 6e 75 61 6c 20  |     any manual |
000013b0  73 65 74 74 69 6e 67 20  6f 66 20 74 68 65 20 6d  |setting of the m|
000013c0  6f 75 73 65 20 70 6f 73  69 74 69 6f 6e 20 77 61  |ouse position wa|
000013d0  73 20 74 72 61 6e 73 6c  61 74 65 64 20 74 6f 20  |s translated to |
000013e0  73 6f 6d 65 74 68 69 6e  67 0a 20 20 20 20 20 20  |something.      |
000013f0  20 6d 65 61 6e 69 6e 67  6c 65 73 73 2c 20 61 6e  | meaningless, an|
00001400  64 20 77 68 65 72 65 20  74 68 65 20 70 6f 69 6e  |d where the poin|
00001410  74 65 72 20 65 6e 64 65  64 20 75 70 20 77 61 73  |ter ended up was|
00001420  20 61 6e 79 6f 6e 65 27  73 20 67 75 65 73 73 21  | anyone's guess!|
00001430  0a 20 20 20 20 20 2d 20  46 69 6e 61 6c 6c 79 2c  |.     - Finally,|
00001440  20 70 61 72 74 73 20 6f  66 20 74 68 65 20 63 6f  | parts of the co|
00001450  64 65 20 77 65 72 65 20  63 68 61 6e 67 65 64 20  |de were changed |
00001460  73 6f 20 61 73 20 6e 6f  74 20 74 6f 20 73 74 6f  |so as not to sto|
00001470  72 65 20 61 6e 79 0a 20  20 20 20 20 20 20 76 61  |re any.       va|
00001480  72 69 61 62 6c 65 73 20  77 69 74 68 69 6e 20 74  |riables within t|
00001490  68 65 20 6d 6f 64 75 6c  65 2c 20 27 63 6f 73 20  |he module, 'cos |
000014a0  69 74 27 73 20 62 61 64  20 70 72 61 63 74 69 63  |it's bad practic|
000014b0  65 20 3a 2d 29 0a 20 20  20 20 20 46 6f 72 20 52  |e :-).     For R|
000014c0  69 73 63 20 4f 53 20 33  2e 35 30 20 6f 6e 6c 79  |isc OS 3.50 only|
000014d0  2e 0a 76 32 2e 30 34 20  28 46 72 69 2c 31 39 20  |..v2.04 (Fri,19 |
000014e0  41 75 67 20 31 39 39 34  29 0a 20 20 20 20 20 41  |Aug 1994).     A|
000014f0  6e 20 75 70 64 61 74 65  20 6f 66 20 76 65 72 73  |n update of vers|
00001500  69 6f 6e 20 32 2e 30 33  2e 20 54 68 69 73 20 77  |ion 2.03. This w|
00001510  6f 72 6b 73 20 6f 6e 20  52 69 73 63 20 4f 53 20  |orks on Risc OS |
00001520  32 2e 30 30 2c 20 33 2e  31 30 20 61 6e 64 20 33  |2.00, 3.10 and 3|
00001530  2e 35 30 0a 20 20 20 20  20 28 61 6e 64 20 70 6f  |.50.     (and po|
00001540  73 73 69 62 6c 79 20 33  2e 31 31 20 61 6e 64 20  |ssibly 3.11 and |
00001550  33 2e 31 32 29 2e 20 54  68 65 20 6f 70 65 72 61  |3.12). The opera|
00001560  74 69 6e 67 20 73 79 73  74 65 6d 20 76 65 72 73  |ting system vers|
00001570  69 6f 6e 20 69 73 20 64  65 74 65 63 74 65 64 0a  |ion is detected.|
00001580  20 20 20 20 20 61 75 74  6f 6d 61 74 69 63 61 6c  |     automatical|
00001590  6c 79 2c 20 6d 61 6b 69  6e 67 20 74 68 65 20 6d  |ly, making the m|
000015a0  6f 64 75 6c 65 20 27 70  6c 75 67 2d 69 6e 2d 61  |odule 'plug-in-a|
000015b0  6e 64 2d 70 6c 61 79 27  2e 0a 0a 0a 54 65 73 74  |nd-play'....Test|
000015c0  69 6e 67 0a 2d 2d 2d 2d  2d 2d 2d 0a 0a 4d 6f 75  |ing.-------..Mou|
000015d0  73 65 20 53 63 61 6c 65  72 20 68 61 73 20 62 65  |se Scaler has be|
000015e0  65 6e 20 74 65 73 74 65  64 20 77 69 74 68 20 74  |en tested with t|
000015f0  68 65 20 66 6f 6c 6c 6f  77 69 6e 67 20 6d 61 63  |he following mac|
00001600  68 69 6e 65 2f 6f 70 65  72 61 74 69 6e 67 20 73  |hine/operating s|
00001610  79 73 74 65 6d 0a 63 6f  6d 62 69 6e 61 74 69 6f  |ystem.combinatio|
00001620  6e 73 3a 0a 0a 20 20 20  20 20 4d 61 63 68 69 6e  |ns:..     Machin|
00001630  65 20 20 20 20 20 4f 53  0a 20 20 20 20 20 52 31  |e     OS.     R1|
00001640  34 30 20 20 20 20 20 20  20 20 52 69 73 63 20 4f  |40        Risc O|
00001650  53 20 32 2e 30 30 0a 20  20 20 20 20 41 34 30 30  |S 2.00.     A400|
00001660  2f 31 20 20 20 20 20 20  52 69 73 63 20 4f 53 20  |/1      Risc OS |
00001670  33 2e 31 30 0a 20 20 20  20 20 52 69 73 63 20 50  |3.10.     Risc P|
00001680  43 20 20 20 20 20 52 69  73 63 20 4f 53 20 33 2e  |C     Risc OS 3.|
00001690  35 30 0a 0a 0a 46 75 72  74 68 65 72 20 64 65 76  |50...Further dev|
000016a0  65 6c 6f 70 6d 65 6e 74  0a 2d 2d 2d 2d 2d 2d 2d  |elopment.-------|
000016b0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 0a 0a 41 74  |------------..At|
000016c0  20 6c 65 61 73 74 20 6f  6e 65 20 6d 6f 72 65 20  | least one more |
000016d0  72 65 6c 65 61 73 65 20  6f 66 20 4d 6f 75 73 65  |release of Mouse|
000016e0  20 53 63 61 6c 65 72 20  69 73 20 70 6c 61 6e 6e  | Scaler is plann|
000016f0  65 64 2c 20 69 6e 20 77  68 69 63 68 20 49 20 68  |ed, in which I h|
00001700  6f 70 65 20 74 6f 0a 73  75 70 70 6f 72 74 20 61  |ope to.support a|
00001710  6c 6c 20 76 65 72 73 69  6f 6e 73 20 6f 66 20 52  |ll versions of R|
00001720  69 73 63 20 4f 53 20 73  69 6e 63 65 20 76 65 72  |isc OS since ver|
00001730  73 69 6f 6e 20 32 2e 30  30 2e 20 49 20 63 61 6e  |sion 2.00. I can|
00001740  27 74 20 64 6f 20 74 68  69 73 20 77 69 74 68 6f  |'t do this witho|
00001750  75 74 0a 73 6f 6d 65 20  68 65 6c 70 20 74 68 6f  |ut.some help tho|
00001760  75 67 68 2c 20 73 6f 20  72 65 61 64 20 6f 6e 2e  |ugh, so read on.|
00001770  2e 2e 0a 0a 0a 55 73 65  72 73 20 6f 66 20 75 6e  |.....Users of un|
00001780  73 75 70 70 6f 72 74 65  64 20 6d 61 63 68 69 6e  |supported machin|
00001790  65 73 0a 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |es.-------------|
000017a0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
000017b0  0a 0a 54 68 69 73 20 73  65 63 74 69 6f 6e 20 69  |..This section i|
000017c0  73 20 66 6f 72 20 68 61  63 6b 65 72 73 2f 74 65  |s for hackers/te|
000017d0  63 68 69 65 73 20 77 68  6f 20 77 61 6e 74 20 74  |chies who want t|
000017e0  68 65 20 76 65 72 73 69  6f 6e 20 6f 66 20 52 69  |he version of Ri|
000017f0  73 63 20 4f 53 20 74 68  65 79 20 75 73 65 0a 74  |sc OS they use.t|
00001800  6f 20 62 65 20 73 75 70  70 6f 72 74 65 64 20 62  |o be supported b|
00001810  79 20 4d 6f 75 73 65 20  53 63 61 6c 65 72 2e 2e  |y Mouse Scaler..|
00001820  2e 0a 0a 49 66 20 4d 6f  75 73 65 20 53 63 61 6c  |...If Mouse Scal|
00001830  65 72 20 72 65 70 6f 72  74 73 20 74 68 61 74 20  |er reports that |
00001840  69 74 20 63 61 6e 6e 6f  74 20 69 6e 69 74 69 61  |it cannot initia|
00001850  6c 69 73 65 20 62 65 63  61 75 73 65 20 69 74 27  |lise because it'|
00001860  73 20 6e 6f 74 20 63 6f  6d 70 61 74 69 62 6c 65  |s not compatible|
00001870  0a 77 69 74 68 20 79 6f  75 72 20 76 65 72 73 69  |.with your versi|
00001880  6f 6e 20 6f 66 20 52 69  73 63 20 4f 53 2c 20 49  |on of Risc OS, I|
00001890  20 77 6f 75 6c 64 20 62  65 20 67 72 61 74 65 66  | would be gratef|
000018a0  75 6c 20 69 66 20 79 6f  75 20 63 6f 75 6c 64 20  |ul if you could |
000018b0  61 74 74 65 6d 70 74 20  74 6f 0a 66 69 6e 64 20  |attempt to.find |
000018c0  74 68 65 20 6c 6f 63 61  74 69 6f 6e 20 6f 66 20  |the location of |
000018d0  74 68 65 20 6d 6f 75 73  65 20 70 6f 69 6e 74 65  |the mouse pointe|
000018e0  72 20 69 6e 66 6f 72 6d  61 74 69 6f 6e 2e 20 49  |r information. I|
000018f0  74 27 73 20 75 73 75 61  6c 6c 79 20 73 6f 6d 65  |t's usually some|
00001900  77 68 65 72 65 0a 62 65  74 77 65 65 6e 20 26 35  |where.between &5|
00001910  41 30 20 61 6e 64 20 26  35 43 30 2e 20 49 20 6e  |A0 and &5C0. I n|
00001920  65 65 64 20 74 6f 20 6b  6e 6f 77 20 77 68 65 72  |eed to know wher|
00001930  65 20 74 68 65 20 66 6f  6c 6c 6f 77 69 6e 67 20  |e the following |
00001940  70 69 65 63 65 73 20 6f  66 0a 69 6e 66 6f 72 6d  |pieces of.inform|
00001950  61 74 69 6f 6e 20 61 72  65 20 6b 65 70 74 3a 0a  |ation are kept:.|
00001960  0a 20 20 20 20 20 4d 6f  75 73 65 20 58 20 70 6f  |.     Mouse X po|
00001970  73 69 74 69 6f 6e 0a 20  20 20 20 20 4d 6f 75 73  |sition.     Mous|
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00001990  20 20 20 4d 6f 75 73 65  20 72 65 63 74 61 6e 67  |   Mouse rectang|
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00001a30  2d 6f 72 64 69 6e 61 74  65 0a 0a 54 68 65 79 20  |-ordinate..They |
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00001a60  61 73 20 73 68 6f 77 6e  20 61 62 6f 76 65 2e 0a  |as shown above..|
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00001c30  2c 34 30 30 2e 0a 0a 46  69 6e 61 6c 6c 79 2c 20  |,400...Finally, |
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00001c60  52 69 73 63 20 4f 53 20  79 6f 75 20 68 61 76 65  |Risc OS you have|
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00001c90  20 20 20 20 50 52 49 4e  54 20 49 4e 4b 45 59 2d  |    PRINT INKEY-|
00001ca0  32 35 36 0a 0a 54 68 61  6e 6b 73 21 0a 0a 0a 41  |256..Thanks!...A|
00001cb0  63 6b 6e 6f 77 6c 65 64  67 65 6d 65 6e 74 0a 2d  |cknowledgement.-|
00001cc0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 0a 0a  |--------------..|
00001cd0  54 68 65 20 63 61 6c 63  75 6c 61 74 69 6f 6e 73  |The calculations|
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00001db0  53 63 68 65 6d 65 0a 2d  2d 2d 2d 2d 2d 2d 2d 2d  |Scheme.---------|
00001dc0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001df0  2d 0a 0a 54 68 65 20 61  70 70 6c 69 63 61 74 69  |-..The applicati|
00001e00  6f 6e 20 6d 61 79 20 6e  6f 74 20 62 65 20 63 6f  |on may not be co|
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00001e40  65 65 20 6d 6f 6e 74 68  73 20 61 66 74 65 72 20  |ee months after |
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00001e70  72 6e 20 55 73 65 72 2c  20 69 2e 65 2e 20 75 6e  |rn User, i.e. un|
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00001e90  31 39 39 35 2e 20 41 66  74 65 72 20 74 68 61 74  |1995. After that|
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00001f30  65 65 6c 79 20 64 69 73  74 72 69 62 75 74 65 64  |eely distributed|
00001f40  20 61 73 20 6c 6f 6e 67  20 61 73 20 69 74 20 69  | as long as it i|
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00001f70  20 70 72 6f 66 69 74 20  69 73 20 6d 61 64 65 20  | profit is made |
00001f80  64 6f 69 6e 67 20 73 6f  2e 20 49 66 20 79 6f 75  |doing so. If you|
00001f90  20 75 73 65 20 4d 6f 75  73 65 20 53 63 61 6c 65  | use Mouse Scale|
00001fa0  72 2c 20 79 6f 75 20 64  6f 20 73 6f 0a 65 6e 74  |r, you do so.ent|
00001fb0  69 72 65 6c 79 20 61 74  20 79 6f 75 72 20 6f 77  |irely at your ow|
00001fc0  6e 20 72 69 73 6b 2e 0a  0a 49 66 20 79 6f 75 20  |n risk...If you |
00001fd0  69 6e 74 65 6e 64 20 74  6f 20 64 69 73 74 72 69  |intend to distri|
00001fe0  62 75 74 65 20 4d 6f 75  73 65 20 53 63 61 6c 65  |bute Mouse Scale|
00001ff0  72 20 74 68 72 6f 75 67  68 20 61 20 70 75 62 6c  |r through a publ|
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00002010  72 65 0a 6c 69 62 72 61  72 79 2c 20 70 6c 65 61  |re.library, plea|
00002020  73 65 20 6f 62 74 61 69  6e 20 6d 79 20 70 65 72  |se obtain my per|
00002030  6d 69 73 73 69 6f 6e 20  66 69 72 73 74 2e 20 54  |mission first. T|
00002040  68 69 73 20 77 61 79 20  49 20 63 61 6e 20 65 6e  |his way I can en|
00002050  73 75 72 65 20 79 6f 75  20 68 61 76 65 0a 74 68  |sure you have.th|
00002060  65 20 6c 61 74 65 73 74  20 76 65 72 73 69 6f 6e  |e latest version|
00002070  20 6f 66 20 74 68 65 20  73 6f 66 74 77 61 72 65  | of the software|
00002080  2c 20 61 6e 64 20 74 68  61 74 20 79 6f 75 20 61  |, and that you a|
00002090  72 65 20 6b 65 70 74 20  75 70 20 74 6f 20 64 61  |re kept up to da|
000020a0  74 65 0a 72 65 67 61 72  64 69 6e 67 20 61 6e 79  |te.regarding any|
000020b0  20 73 69 67 6e 69 66 69  63 61 6e 74 20 63 68 61  | significant cha|
000020c0  6e 67 65 73 2e 0a 0a 0a  54 68 65 20 41 75 74 68  |nges....The Auth|
000020d0  6f 72 0a 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 0a 0a 43  |or.----------..C|
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000020f0  65 73 74 69 6f 6e 73 20  61 72 65 20 77 65 6c 63  |estions are welc|
00002100  6f 6d 65 2e 20 53 65 6e  64 20 74 68 65 6d 20 74  |ome. Send them t|
00002110  6f 20 74 68 69 73 20 61  64 64 72 65 73 73 3a 0a  |o this address:.|
00002120  0a 20 20 20 20 20 20 4e  69 63 6b 20 4a 61 72 6d  |.      Nick Jarm|
00002130  61 6e 0a 20 20 20 20 20  20 37 20 43 61 64 65 74  |an.      7 Cadet|
00002140  20 57 61 79 0a 20 20 20  20 20 20 43 68 75 72 63  | Way.      Churc|
00002150  68 20 43 72 6f 6f 6b 68  61 6d 0a 20 20 20 20 20  |h Crookham.     |
00002160  20 46 4c 45 45 54 0a 20  20 20 20 20 20 48 61 6e  | FLEET.      Han|
00002170  74 73 0a 20 20 20 20 20  20 47 55 31 33 20 30 55  |ts.      GU13 0U|
00002180  47 0a 20 20 20 20 20 20  55 4b 0a                 |G.      UK.|
0000218b