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apple2(6)		      XScreenSaver manual		     apple2(6)

NAME
       apple2 -	Apple ][ display emulator

SYNOPSIS
       apple2  [--display  host:display.screen]	 [--foreground color] [--back-
       ground color] [--window]	[--root] [--window-id  number][--mono]	[--in-
       stall]	[--visual   visual]   [--program  command  to  run]  [--basic]
       [--slideshow] [--text] [--meta] [--esc] [--bs] [--del] [--fast] [--fps]

DESCRIPTION
       The apple2 program simulates an original	Apple ][ Plus computer in  all
       its 1979	glory. It also reproduces the appearance of display on a color
       television set of the period.

       There  are  3  modes: basic, slideshow, and text. Normally it chooses a
       mode randomly, but you can override with	the --basic,  --slideshow,  or
       --text options.

       In basic	mode a simulated user types in a Basic program and runs	it.

       In  slideshow  mode it chooses a	number of images from the image	source
       you configured into XScreenSaver	and displays them within  the  limita-
       tions  of  the Apple ][ display hardware. With only 6 available colors,
       you can only make out the general shape of the pictures.

       In text mode it displays	the output of a	command	or the contents	 of  a
       file or URL (via	the default xscreensaver-text(6) program, which	can be
       overridden with --program).

       In  text	 mode,	it is also a fully functional (if anachronistic) vt100
       terminal	emulator.

OPTIONS
       apple2 accepts the following options:

       --window
	       Draw on a newly-created window.	This is	the default.

       --root  Draw on the root	window.

       --window-id number
	       Draw on the specified window.

       --mono  If on a color display, pretend we're on a monochrome display.

       --install
	       Install a private colormap for the window.

       --visual	visual
	       Specify which visual to use.  Legal values are the  name	 of  a
	       visual  class,  or the id number	(decimal or hex) of a specific
	       visual.

       --basic Choose basic mode

       --slideshow
	       Choose slideshow	mode

       --text  Choose text mode

       --program sh-command
	       In text mode, the command to run	to generate the	text  to  dis-
	       play.  This option may be any string acceptable to /bin/sh. The
	       program will be run at the end of a pipe,  and  any  characters
	       that  it	 prints	to stdout will be printed on the Apple ][ dis-
	       play. If	the program exits, it will be launched again  after  3
	       seconds.	 Default: xscreensaver-text(6).

	       In  text	 mode,	apple2	emulates a vt100 terminal running on a
	       40x24 uppercase-only screen.

	       For example:

		 apple2	--text --program 'ping apple.com'
		 apple2	--text --program 'ps -e'
		 apple2	--text --program 'od -txCz -w7 /dev/urandom'
		 apple2	--text --program 'cat /dev/random'
		 apple2	--text --fast --program	'emacs -nw -q -f life'
		 apple2	--text --fast \
			--program 'emacs -nw -q	--eval "(hanoi 5)"'

	       You can also use	apple2 as an extremely lo-fi  replacement  for
	       the xterm(1) and	gnome-terminal(1) terminal emulators:

		 apple2	-text -fast -program tcsh

       --pty   In  --text  mode, launch	the sub-program	under a	pty so that it
	       can address the screen directly.	 This is the default.

       --pipe  In --text mode, launch the sub-program at the end of a pipe: do
	       not let it address the screen directly.

       --esc   When the	user types a key with the Alt or Meta keys held	 down,
	       send an ESC character first.  This is the default.

       --meta  When Meta or Alt	are held down, set the high bit	on the charac-
	       ter instead.

       --del   Swap Backspace and Delete.  This	is the default.

       --bs    Do not swap Backspace and Delete.

       --fast  Normally,  characters  are  printed at the speed	of an original
	       Apple][ computer; however, when using this program as a	termi-
	       nal  emulator,  the  novelty of those 300 baud characters might
	       wear off.  You can use the --fast option	to speed things	 up  a
	       bit.

       --fps   Display the current frame rate and CPU load.

TERMINAL EMULATION
       By  default,  apple2  allocates	a  pseudo-tty for the --text-mode sub-
       process to run under.  This has the desirable side effect that the pro-
       gram will be able to use	ioctl(2) to fetch information  about  terminal
       parameters  and	window size, which many	programs (such as top(1)) need
       to run properly.	apple2 will also set the environment variable TERM  to
       vt100 in	the child process.

       Any  characters	typed on the apple2 window will	be passed along	to the
       sub-process.  (Note that	this only works	when running in	"window" mode,
       not when	running	in --root mode under xscreensaver.)

ENVIRONMENT
       DISPLAY to get the default host and display number.

       XENVIRONMENT
	       to get the name of a resource file that	overrides  the	global
	       resources stored	in the RESOURCE_MANAGER	property.

       XSCREENSAVER_WINDOW
	       The window ID to	use with --root.

       TERM    to inform the sub-process of the	type of	terminal emulation.

X RESOURCES
       Notable X resources supported include the following which correspond to
       standard	 TV controls: analogTVTint, analogTVColor, analogTVBrightness,
       and analogTVContrast which correspond to	 standard  TV  controls.  They
       range  from 0 to	100,except for tint which is an	angle between -180 and
       +180.

TRADEMARKS
       Apple ][	and Applesoft are trademarks of	Apple Computer.

SEE ALSO
       xscreensaver(1),	 bsod(6),  xscreensaver-text(6),   fortune(1),	 phos-
       phor(6),	 starwars(6),  ljlatest(6), dadadodo(1), webcollage(6),	drift-
       net(1) EtherPEG,	EtherPeek, console_codes(4).

COPYRIGHT
       Copyright (C) 2002-2003 by Trevor Blackwell.  Permission	to use,	 copy,
       modify,	distribute,  and  sell this software and its documentation for
       any purpose is hereby granted without  fee,  provided  that  the	 above
       copyright  notice appear	in all copies and that both that copyright no-
       tice and	this permission	notice appear in supporting documentation.  No
       representations are made	about the suitability of this software for any
       purpose.	 It is provided	"as is"	without	express	or implied warranty.

AUTHOR
       Television and Apple ][ emulation by  Trevor  Blackwell	<tlb@tlb.org>.
       Slideshow and text mode by Jamie	Zawinski <jwz@jwz.org>.	 Pty and vt100
       emulation by Fredrik Tolf <fredrik@dolda2000.com>.

X Version 11		      6.09 (07-Jun-2024)		     apple2(6)

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