NAME

       decayscreen - make a screen meltdown.

SYNOPSIS

       decayscreen  [--display  host:display.screen]  [--window]  [--root]  [--window-id  number]
       [--mono] [--install] [--visual visual] [--delay usecs]  [--duration  secs]  [--mode  mode]
       [--fps]

DESCRIPTION

       The  decayscreen  program  creates a melting effect by randomly shifting rectangles around
       the screen.

       The image that it manipulates will be grabbed from the portion of  the  screen  underlying
       the  window, or from the system's video input, or from a random file on disk, as indicated
       by  the  grabDesktopImages,  grabVideoFrames,  and  chooseRandomImages  options   in   the
       ~/.xscreensaver file; see xscreensaver-settings(1) for more details.

OPTIONS

       decayscreen 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.

       --delay microseconds
               Slow it down.

       --duration seconds
               How long to run before loading a new image.  Default 120 seconds.

       --mode mode
               The direction in which the image should tend to slide.  Legal  values  are  random
               (meaning  pick  one), up, left, right, down, upleft, downleft, upright, downright,
               shuffle (meaning prefer no particular direction), in (meaning move  things  toward
               the  center),  out  (meaning move things away from the center), melt (meaning melt
               straight downward),  stretch (meaning  stretch  the  screen  downward),  and  fuzz
               (meaning go blurry instead of melty).

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

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.

SEE ALSO

       X(1), xscreensaver(1), xscreensaver-settings(1), xscreensaver-getimage(6x)

COPYRIGHT

       Copyright 1992 by Vivek Khera.  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  notice
       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

       Vivek  Khera  <khera@cs.duke.edu>, 05-Aug-93; based on code by David Wald, 1988.  Modified
       by jwz, 28-Nov-1997.  Modified by Rick Schultz <rick@skapunx.net>  05-Apr-1999.   Modified
       by Vince Levey <vincel@vincel.org> 25-Oct-2001.