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scopedisk83
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popcli4
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popcli.doc
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* |_o_o|\\ Copyright (c) 1986 The Software Distillery. All Rights Reserved */
/* |. o.| || This program may not be distributed without the permission of */
/* | . | || the authors. */
/* | o | || Dave Baker Ed Burnette Jay Denebeim John Mainwaring */
/* | . |// Gordon Keener Jack Rouse John Toebes Doug Walker */
/* ====== BBS:(919)-471-6436 */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
POPCLI IV by Gordon Keener, John Toebes
© 1987, 1988, 1989 The Software Distillery. All Rights Reserved
235 Trillingham Ln, Cary, NC 27513
Contributions to continue development of this and other fine products for the
Amiga should be sent to the Software Distillery at the above address.
Other Products produced by the Software Distillery are:
BLINK - the Turbo-charged Alink replacement
HACK - The Amiga port of the famous UNIX game
LARN - Another famous UNIX game
MEMWATCH - Protects your machine from random trashes
MAKE - A software development tool one shouldn't be without
KERMIT - The World renown file transfer protocol brought to the Amiga
ICONEXEC, SETALTERNATE, SETWINDOW - Icon manipulation tools
TSIZE - A short utility for determining directory sizes.
All of these are available on our BBS.
Permission is hereby granted to distribute this program provided both this
documentation accompanies the executable and that no charge is made for its
distribution.
POPCLI (pronounced POP-SEE-EL-EYE) is designed to solve two problems at once.
First it provides a simple way of starting another CLI at any time without
having to load workbench or exit whatever program you may be using. Second
it has a builtin screen saver mode that automatically turns off the Amiga
display when there has been no input for a given period of time.
Once POPCLI is running, you can use it to get a new CLI from whatever program
you are running by pressing Left Amiga and ESC at the same time. What this
does is to bring the workbench screen to the front and then start up a new
CLI window on the workbench screen. This is extremely handy when you start
a program from CLI and then find you need to do a CLI command.
The other function that POPCLI performs is to blank the screen for you. This
saves on the wear of the monitor phospher. It will do this for you
automatically any time that you have not pressed any key or moved the mouse
for a given period of time regardless of what has been written to the screen.
This is useful when you leave the Amiga on unattended so that you don't have
to mess with the brightness control or, worse yet, turn the monitor off,
putting wear and tear on its power supply. Furthermore it only takes a
touch of the mouse or any key on the keyboard to bring it all back.
The format of the POPCLI command is:
POPCLI [[secs | ADD | REPL] [key]] [[cmdmods] [CMD] cmnd]
POPCLI FREE [key]
POPCLI EXEC [key]
POPCLI BLANK
POPCLI UNBLANK
POPCLI QUIT
POPCLI ?
cmdmods:
[NOWB] [MINMEM nnn] [MINCHIP nnn]
From AREXX:
ADDRESS 'POPCLI4' <popcli-arguments>
POPCLI ? prints a summary of POPCLI options.
<seconds> is any number of seconds after which the screen saver is to
go into effect. If nothing is specified it defaults to turning off the
screen after 300 seconds. (Five minutes) Note that it makes its decision to
shut blank the screen solely upon the absence of any keyboard, gameport, or
mouse input. Even if a program is printing to the screen it will shut down.
This is not a problem, to unblank the screen merely move the mouse or touch any
key (SHIFT or CTRL are excellent choices since they don't do anything).
<key> is the scan code of the key that you wish to act as the command
executer. By default this is the Escape key although you may set it to any
other key if an application you use wants to conflict with PopCLI's choice.
Scan codes may be entered in decimal, or in hex (0xnn or 0Xnn). Keys on the
main part of the keyboard may also be specified as 'c', where c is one of
the characters on the keycap; i.e. 's' and 'S' are equivalent to scan code
0x21. Also, F1-F10, DEL, and ESC are recognized as naming those keys.
<command> is the command to be executed when the Left Amiga and <key> keys are
pressed simaultaneously. By default the command is
NEWCLI >NIL:
to bring up a CLI window in the center of the screen. Note the >NIL: on the
command to supress any output that the NEWCLI program may give. This is
important because at the time the command is executed, the original window
may be long gone. If you wish to have a CLI come up elsewhere on the screen
you can put the window definition in the command such as:
NEWCLI >NIL: CON:0/0/640/200/MYCLI
Which will open a CLI to fill the entire (non-interlaced) screen. POPCLI
does no parsing on the command, merely passing the ENTIRE string without any
processing to AmigaDOS.
The ADD (or REPL) keyword allows a new command key to be added to POPCLI without
altering the timeout value. You can specify either a timeout or ADD, but not
both. If the keycode cannot be read as a decimal digit, then you may leave
off the ADD keyword, but I recommend using it for clarity. Whenever a key
is redefined, the old command for that key is forgotten.
The FREE keyword will cause POPCLI to free the specified key (default is ESC)
and forget its command. If you wish to re-instate the key, you will have to
specify the full command.
The EXEC command will cause the specified key to be executed, just as if it
had been typed at the keyboard.
The BLANK keyword causes the screen to immediately blank.
The UNBLANK keyword causes the screen to immediately unblank. Useful from
command scripts.
The TIME keyword allows you to reset the timeout value without clobbering any
of the key definitions currently in effect.
The NOWB keyword, placed in front of a command, will keep POPCLI from popping
the Workbench screen to the front whenever the current key is hit. By default,
POPCLI will pop the Workbench to the front, since the NEWCLI command will
open a window on the Workbench screen. If, for example, you wanted to open
a WShell on the topmost screen (using ConMan V1.3 or later), you could
execute the following:
POPCLI ADD 0x00 NOWB NEWWSH CON:s*0/0/640/150/topscreen/c
The MINMEM and MINCHIP keywords are useful when your popped commands need a
lot of memory. MINMEM suppresses command execution if less than the
specified amount of memory is available; MINCHIP if there is not enough
chip RAM. The numbers are rounded up to 1k increments, and are intended to be
approximate. For instance, if you wish to define the Lamiga-1 key to be
"RUN LSE", and you don't want to run LSE unless there is 50K of chip memory
free, you can do the following:
POPCLI ADD '1' MINCHIP 50000 CMD RUN LSE
The CMD keyword allows commands with names which conflict with other POPCLI
keywords or key codes to be specified. For example,
POPCLI ADD 0x00 NowB aShell
will cause Lamiga-` to execute the "aShell" command without popping the
Workbench screen forward;
POPCLI ADD 0x00 CMD NowB aShell
will execute "NowB aShell" after popping the Workbench.
NOTE: POPCLI keywords are NOT case sensitive.
Terminating POPCLI:
-------------------
Once PopCLI has been installed, you can terminate it with the command:
POPCLI QUIT
You can change the default interval by giving a number:
POPCLI 5 - sets the default timeout to 5 seconds.
This is handy when you want to blank the screen immediately. Setting the
interval to a very large number:
POPCLI 99999
Will keep PopCLI from blanking your screen.
Setting the interval does not affect the command(s) to be executed.
Controlling PopCLI from ARexx:
------------------------------
PopCLI now has support for an ARexx port. Now, once PopCLI is up, you can
send it commands from an ARexx script with the following ARexx command:
ADDRESS POPCLI4 <popcli-arguments>
where <popcli-arguments> are any valid PopCLI arguments. Possible uses (or
abuses) of this feature include:
* Defining lots of keys is faster using the ARexx port than it would be to
run PopCLI multiple times in succession.
* You can define a PopCLI key to run an ARexx script which re-defines other
PopCLI keys. Of course, you could do that without the port, but with it,
you don't have to have the PopCLI module lying around on disk.
* Blanking and unblanking the screen around compiles.
Installing PopCLI:
------------------
To install a copy of POPCLI on your workbench, put a copy of POPCLI in your
C directory and edit the Startup-Sequence file in the S directory to add
POPCLI commands of your own taste.
Notes:
1) POPCLI blanks the screen by creating a one bit-blane lo-res screen in front
of all other screens and setting the background color to solid black. It
then turns off the display freeing the cycles for any program that might
be running.
2) Once the screen blanks, if the AMIGA is left undisturbed for 68.096 years
the screen may briefly flash back on for the next 68.096 years. I have not
taken the time to test this. If this turns out to be a problem, please
let me know.
Enhancements Provided under POPCLI II:
* POPCLI now runs from WORKBENCH. An icon is provided for doing so. When
run from workbench, the default command and default times will be used.
* When run from CLI, the original window now goes away. In doing so, it
also appears that incompatibilities with 1.2 have been removed. Please
feel free to comment on potential future improvements.
* The size of the screen used to blank the display has been reduced to reduce
memory required to blank the screen.
* POPCLI has been recompiled to take advantage of the latest features of 3.04
Lattice and BLINK. Although source is being distributed, it is not likely
that a version of POPCLI could be reconstructed without these products.
Enhancements Provided under PopCLI III:
* POPCLI has again been recompiled with Lattice 4.0 and Blink 6.9. The source
provided will NOT compile with other than the latest version of Lattice.
* POPCLI now self installs itself using the seglist splitting technique of
CBack. Because of this, you may freely change the timeout interval or command
without having to reboot your machine.
Enhancements Provided under PopCLI IV:
* PopCLI has been (aww, you guessed!) recompiled with Lattice 5.00 and Blink
7.3.
* Multiple PopCLI keys with different commands are now supported. You may
PopCLI ADD or PopCLI FREE keys at will. PopCLI QUIT will remove *all* keys.
* Many new keywords and commands supported.
* The code has been arranged such that the setup code and data resides
in the first hunks of the PopCLI executable. This allows it to be freed when
cback goes away.
* Hex key names (0xnn) are supported; this makes it easier to assign PopCLI
keys while looking at the scan code table in the AmigaDOS manual. F1-F10
are also accepted, as well as ESC and DEL. Character keys may also be
specified as 'c'.
* Popped CLI's now retain the following information from the CLI from which
PopCLI is run:
Current Directory
Current Directory Name (not quite equivalent to the current directory)
Default Stack Size
Prompt
Fail Level
Path
Notice that these are copied when PopCLI is *first* run, not when the key is
pressed or even when a new key is added to PopCLI.
* Support for an ARexx port has been added.