.if n .sp 1
.if t .sp .5
..
-.TH XScreenSaver 1 "31-May-2002 (4.04)" "X Version 11"
+.TH XScreenSaver 1 "20-Mar-2005 (4.21)" "X Version 11"
.SH NAME
xscreensaver-demo - interactively control the background xscreensaver daemon
.SH SYNOPSIS
.B xscreensaver\-demo
[\-display \fIhost:display.screen\fP]
[\-prefs]
-[--crapplet]
[--debug]
.SH DESCRIPTION
The \fIxscreensaver\-demo\fP program is a graphical front-end for
This option menu controls the behavior of the screen saver. The options are:
.RS 8
.TP 8
-.B Random Screen Saver
-When blanking the screen, select a random display mode from among those
-that are enabled and applicable. This is the default.
+.B Disable Screen Saver
+Don't ever blank the screen, and don't ever allow the monitor to power down.
+.TP 8
+.B Blank Screen Only
+When blanking the screen, just go black: don't run any graphics hacks.
.TP 8
.B Only One Screen Saver
When blanking the screen, only ever use one particular display mode (the
one selected in the list.)
.TP 8
-.B Blank Screen Only
-When blanking the screen, just go black: don't run any graphics hacks.
+.B Random Screen Saver
+When blanking the screen, select a random display mode from among those
+that are enabled and applicable. This is the default.
.TP 8
-.B Disable Screen Saver
-Don't ever blank the screen, and don't ever allow the monitor to power down.
-
+.B Random Same Saver
+This option only appears if you have multiple monitors.
+This is just like \fBRandom Screen Saver\fP, except that the \fIsame\fP
+randomly-chosen display mode will be run on all monitors, instead of a
+different one being run on each.
.RE
.TP 4
.B Demo List
will blank the screen.
.TP 4
.B Cycle After
-jAfter the screensaver has been running for this long, the currently
+After the screensaver has been running for this long, the currently
running graphics demo will be killed, and a new one started.
If this is 0, then the graphics demo will never be changed:
only one demo will run until the screensaver is deactivated by user
.BR xscreensaver\-getimage (1)
program, which is what actually does the work.)
.TP 4
-.B Verbose Diagnostics
-Whether to print lots of debugging information.
+.B Text Manipulation
+Some of the display modes display and manipulate text. The following
+options control how that text is generated. (These parameters control
+the behavior of the
+.BR xscreensaver\-text (1)
+program, which is what actually does the work.)
.TP 4
-.B Display Subprocess Errors
-If this is set, then if one of the graphics demos prints something to
-stdout or stderr, it will show up on the screen immediately (instead of
-being lost in a hidden terminal or file that you can't see.)
-
-If you change this option, it will only take effect the next time the
-xscreensaver daemon is restarted. (All other settings take effect
-immediately.)
+.B Host Name and Time
+If this checkbox is selected, then the text used by the screen savers
+will be the local host name, date, time, and system load.
+.TP 4
+.B Text
+If this checkbox is selected, then the literal text typed in the
+field to its right will be used. If it contains % escape sequences,
+they will be expanded as per
+.BR strftime (2).
+.TP 4
+.B Text File
+If this checkbox is selected, then the contents of the corresponding
+file will be displayed.
+.TP 4
+.B Program
+If this checkbox is selected, then the given program will be run,
+and its output will be displayed.
.TP 4
-.B Display Splash Screen at Startup
-Normally when xscreensaver starts up, it briefly displays a splash dialog
-showing the version number, a \fIHelp\fP button, etc. If this option is
-turned off, the splash screen will not be shown at all.
+.B URL
+If this checkbox is selected, then the given HTTP URL will be downloaded
+and displayed repeatedly. If the document contains HTML, RSS, or Atom,
+it will be converted to plain-text first.
+
+Note: this re-downloads the document every time the screen saver
+runs out of text! It might be considered abusive for you to point
+this at a web server that you do not control, as it will probably
+be hitting that server multiple times a minute.
.TP 4
.B Power Management Enabled
Whether the monitor should be powered down after a period of inactivity.
power down after this much idle time. This duration should be greater
than or equal to \fISuspend\fP.
.TP 4
-.B Install Colormap
-Whether to install a private colormap while the screensaver is active, so
-that the graphics hacks can get as many colors as possible. (This only
-applies when the screen's default visual is being used, since non-default
-visuals get their own colormaps automatically.) This can also be overridden
-on a per-demo basis.
+.B Quick Power-off in "Blank Only" Mode
+If the display mode is set to \fIBlank Screen Only\fP and this is
+checked, then the monitor will be powered off immediately upon
+blanking, regardless of the other power-management settings. In this
+way, the power management idle-timers can be completely disabled, but
+the screen will be powered off when black. (This might be preferable
+on laptops.)
.TP 4
.B Fade To Black When Blanking
If selected, then when the screensaver activates, the current contents
.B Fade Duration
When fading or unfading are selected, this controls how long the fade will
take.
+.TP 4
+.B Install Colormap
+On 8-bit screens, whether to install a private colormap while the
+screensaver is active, so that the graphics hacks can get as many
+colors as possible. This does nothing if you are running in 16-bit
+or better.
.PP
There are more settings than these available, but these are the most
commonly used ones; see the manual for
discussion of the \fIprograms\fP parameter in the \fIConfiguration\fP
section of the
.BR xscreensaver (1)
-manual.
+manual. (OpenGL programs should always have their visual set to "GL".)
.SH COMMAND-LINE OPTIONS
.I xscreensaver\-demo
accepts the following command line options.
Start up with the \fBAdvanced\fP tab selected by default
instead of the \fBDisplay Modes\fP tab.
.TP 8
-.B \-crapplet
-For use by the Gnome Control Center code: this causes this program to
-be embedded inside the Control Center window.
-.TP 8
.B \-debug
Causes lots of diagnostics to be printed on stderr.
.P
.B XENVIRONMENT
to get the name of a resource file that overrides the global resources
stored in the RESOURCE_MANAGER property.
+.TP 8
+.B HTTP_PROXY\fR or \fPhttp_proxy
+to get the default HTTP proxy host and port.
.SH UPGRADES
The latest version can always be found at
http://www.jwz.org/xscreensaver/
.BR X (1),
.BR xscreensaver (1),
.BR xscreensaver\-command (1),
-.BR xscreensaver\-getimage (1)
+.BR xscreensaver\-getimage (1),
+.BR xscreensaver\-text (1)
.SH COPYRIGHT
-Copyright \(co 1992, 1993, 1997, 1998, 1999, 2000, 2001, 2002
+Copyright \(co 1992, 1993, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
by Jamie Zawinski. 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
projects / xscreensaver / blobdiff