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Aminet AMIGA CDROM (1994)(Walnut Creek)[Feb 1994][W.O. 44790-1].iso
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os20
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util
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pscreen128.lha
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Intro.txt
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1992-04-22
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Intro to Public Screens: Last edited 4/22/91
-------------------------------------------------------------------------------
Public Screens are a feature of, and require: Amiga OS Release 2, if you have
an older operating system, you should consider upgrading to make use of this
powerful feature.
What is a Public Screen?
===============================================================================
Public Screens are new Amiga Screens that can have program windows on them,
instead of the Workbench Screen, allowing you to avoid shuffling windows around
the Workbench Screen in order to get to your Icons. A good use of this would be
for opening a public screen and putting both an Amiga Shell Window and a Clock
Window, as a CLI work environment, leaving Workbench available for file/icon
manipulation. An Amiga enthusiast may have several public screen 'environments'
that he switches back and forth between either via the screen to back gadget,
or via the Keyboard LEFT_AMIGA+M, LEFT_AMIGA+N shortcuts.
Public Screens are a feature of AmigaOS release 2. They offer a standard
way of opening multiple programs from differing sources on a screen separate
from Workbench. Software can be written to be Public Screen Aware, in which
case it should have a SCREEN keyword for CLI users and a SCREEN tooltype for
Workbench icons. Some programs may even have Jump Button, allowing you to
'teleport' their window from Screen to Screen.
Some Public Screen aware programs include:
------------------------------------------
TurboText: editor Commercial
WShell 2.0: Amiga Shell replacement + extras Commercial
MultiPlayer: music module player program Shareware
What about Older programs that do not know about Public Screens?
-----------------------------------------------------------------
If you Set your Public Screen as "Default/Shanghai Mode Enabled", any program
that would normally try to open on the Workbench Screen will open on the Public
Screen instead. Try the Clock Program, or Shell as an example.
Selecting Undefault will refer the default back to workbench or your previous
default public screen.
It is OK to Undefault Screen whenever you are unsure which screen is default.
This should return Default to Workbench or whichever screen was previously default.
USING Public Screens without DEFAULT/SHANGHAI:
----------------------------------------------
CLI Example: (open a public screen and then open a shell on that public screen)
System2.0:>publicscreen MyScreen
System2.0:>newshell WINDOW="con:0/0/600/150/PublicShell/close/SCREEN MyScreen"
^Quotes are important ^Case Sensitive
Workbench Example: (making a public screen shell icon)
make a copy of the sys:shell icon and add the following tooltype to the copy:
CON:0/0/600/150/PublicShell/CLOSE/SCREEN PublicScreen.1
^^no quotes ^^Case Sensitive
Double Click on the PublicScreen Icon to open a public screen.
switch back to your workbench screen, and then
Double Click on the copy_of_Shell Icon that you modified
You should now have a shell open on the public screen.
font problems with eariler versions of PublicScreen:
----------------------------------------------------
I made a simple programming mistake with versions of PublicScreen below 1.02.06
which caused the wrong default font for programs like the Amiga Shell.
I hadn't read over the examples well enough -- Sorry.
problems with PublicScreen 1.02.07 and menu items not functioning.
-----------------------------------------------------------------------
Open PublicScreen: You started PublicScreen with a default directory other than
where the program actually lives. PublicScreen only has a search path of its
current directory and C: .
CALCULATOR,MEMACS, ED: Do you have the programs in the specified directories?
Again, PublicScreen can only find files in it's current dir or C: unless
it is fed an absolute path like I hardcoded these to.
CLOCK:
I hardcoded the startup position of the clock too far to the right for screens
without enough overscan, so it fails -- Sorry.
ED:
Does not open its file requestor on PublicScreen, they open on Workbench, ignoring
the CON: specification to open on PublicScreen. (UGH!)
This is Someone else's bug...
Other Helpful Hints:
--------------------
When in Default/Shanghai Mode:
You may want to use a Commodities Exchange tool so that you can launch your favorite
programs from the Public Screen, without swapping screens, by using only the keyboard
Commands -- OK you may have to bump your mouse a little.
Right_Amiga_D to set default
<return> to close requester
CX commands like: Left_Amiga_Esc for a new shell
Right_Amiga_U
<return> to close requester