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PPShow 1.0 User Manual
Jan 1, 1990
Preface
=======
This program is freeware, this means that you can copy it freely as long
as you don't ask any more money for it than a nominal fee for copying. If
you want to distribute this program you should keep this document with it.
If you have suggestions or remarks about this program, or if you find
any bugs, please let me know.
Write to the following address:
Nico François
Corbielaan 13
3060 Bertem BELGIUM
Contents
========
1. An introduction
2. Usage
3. Features
4. Note on crunching
1. An introduction
==================
PPShow was written to complement one of my other utilities, PowerPacker
(a command and data cruncher). It is used to show normal IFF ILBM files or
ILBM files crunched with PowerPacker. The decrunching is done automatically
so the user doesn't have to know if a file is crunched or not.
If you haven't got PowerPacker you are of course missing one of the main
features of this program. You can try to find it in your favourite public
domain library or you can get it by writing to my address and adding $15 US
(if you live in Europe), $20 US (if you live elsewhere). Send money in cash,
by international money order or by EuroCheck (only in Belgian Francs (BF) !!)
(Please don't send other checks). PowerPacker was published in the November
89 issue of JumpDisk and can be found on one of the Antares RD or Fish disks
as well as on several other PD disks.
2. Usage
========
PPShow can be used in three different ways.
- First of all via the CLI:
If you enter PPShow without arguments you will get a usage template.
You use PPShow like this:
PPShow [<options>] <filename>
The program will then load the ILBM file and display it. If the file
was crunched using PowerPacker 2.0 or higher PPShow will first decrunch it
for you. If the file was encrypted you will be prompted for the password.
There is only one option in this version: '-h'. This option is used to
force HAM mode when no CAMG chunk is found. If you don't specify this option
PPShow will assume a 6 plane screen is extra half brite. (Note that it is
wrong for an Amiga IFF ILBM file not to have a CAMG chunk, especially when
there can be doubt about what display mode to pick !)
PPShow can be made resident so it doesn't have to be loaded every time
you use it, use the ARP ARes command or the WB1.3 Resident command for this.
You can't make PPShow resident when it is crunched !! The file is supplied
as an uncrunched command file with the pure bit set. PPShow is reentrant as
well, so you can run it from several CLI's at the same time. (Not that this
is very useful, but it's possible :-D)
Example: '1> PPShow -h dh0:pics/HAMpicWithoutCAMG.pic'
- Via the WorkBench:
There are three different ways of using PPShow via the workbench: you
can set the default tool of the (crunched) ILBM file to 'PPShow', you can
single click the PPShow icon and then double click the picture icon or you
can double-click the PPShow icon and enter the filename in the string gadget
you will be presented with.
You set the default tool by single clicking the icon of the picture
and selecting 'Info' from the workbench menu. You will get a window with
several gadgets in it, click in the string gadget where it says 'Default
tool' and enter ':ppshow'. PPShow should be in the root directory of your
disk for this to work, if e.g. it's in the system directory you should enter
':system/ppshow'. Last of all select the 'Save' gadget.
NOTE: - PPShow will add '.pp' to the filename when the file wasn't found.
This is very useful in the WorkBench enviroment: you can make an
icon for 'house.pic' but name the file 'house.pic.pp'. Now the
WorkBench will show an icon with 'house.pic' as name, but if you
doubleclick it 'house.pic.pp' will be displayed. (As long as there
is no 'house.pic' file in the directory !)
3. Features
===========
- Abort PPShow by pressing any key (except <TAB> or 'P') or the right
mouse button. The screen can be dragged by an invisible drag bar at
the top.
- The pesky little mouse will be removed while displaying.
- PPShow offers full overscan support, PAL or NTSC. As far as I know
this is the first ILBM viewing program to do so, looks like PAL Amiga
owners still get forgotten. All Amiga display modes (like HAM, EHB)
are of course also supported.
- Deluxe Paint cycling is supported, press <TAB> to (de)activate. Up to
8 cycles are supported (DPaint III currently only supports 6).
- PPShow has the ability to print the screen it is displaying, all you
have to do is press 'P' on the keyboard and wait. The mouse pointer
will be visible while printing. Please note that the printer.device has
to be in the 'devs:' directory for PPShow to be able to print, you
should also have a correct system-configuration for your printer.
4. Note on crunching
====================
A lot of IFF ILBM files are already crunched with the standard ByteRun1
compression. PowerPacker will crunch these files even further (most of the
time) but will not crunch them as well as uncrunched ILBM files. So save IFF
files uncrunched (if you can, e.g. with PixMate) before crunching them, this
way you will get the best crunching results.
As always, I hope you find this program useful !
PROGRAM HISTORY:
*****************************************************************************
VERSION 1.0
First release.
*****************************************************************************
PPShow 1.0 written by Nico François (Yes, Nico is my first name :-)
(c) 1989 Nico François / PowerPeak
//
Thanks to \X/ Amiga for being the best computer ever !