xscreensaver(1)
NAME
decayscreen - make a screen meltdown.
SYNOPSIS
decayscreen [-display host:display.screen] [-window] [-root] [-mono] [-install] [-visual visual] [-delay usecs] [-mode mode]
DESCRIPTION
The decayscreen program creates a melting effect by ran
domly 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-demo(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.
- -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.
- -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 perfer 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).
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_MAN
AGER property.
SEE ALSO
X(1), xscreensaver(1), xscreensaver-demo(1), xscreen
saver-getimage(1)
COPYRIGHT
Copyright 1992 by Vivek Khera. Permission to use, copy,
modify, distribute, and sell this software and its docu
mentation 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 per
mission 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. Modi
fied by Rick Schultz <rick@skapunx.net> 05-Apr-1999. Mod
ified by Vince Levey <vincel@vincel.org> 25-Oct-2001.