slip man page on DigitalUNIX
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XScreenSaver(1) XScreenSaver(1)
NAME
slip - sucks your screen into a jet engine
SYNOPSIS
slip [-display host:display.screen] [-foreground color] [-background
color] [-window] [-root] [-mono] [-install] [-visual visual] [-ncolors
integer] [-iterations integer] [-points integer] [-delay microseconds]
[-delay2 microseconds]
DESCRIPTION
The slip program does lots of blits and chews up your screen image.
OPTIONS
slip 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.
-ncolors integer
How many colors should be used (if possible). Default 128.
The colors used cycle through the hue, making N stops around
the color wheel.
-count integer
How many whooziwhatsis to generate. Default 35.
-cycles integer
How long to frobnicate. Default 50.
-delay microseconds
How long we should wait between drawing each step. Default
50000, or about 1/20th second.
RESOURCES
On some systems (currently, only SGIs), this program can, instead of
grabbing a desktop image, grab a frame of video from an external camera
and manipulate that instead. The following resources control that.
grabVideoProbability (Float)
What portion of the time to grab video rather than a screen
image, between 0.0 and 1.0. Defaults to 0.5, or half the time.
videoDevice (Integer)
The number of the default video input device to check first.
If unspecified, the default camera (from videopanel(1)) will be
checked first. After that, all other available video input
devices will be checked in order.
The first one which produces a non-black image will be used.
If all images are black, the others will be re-checked a few
times before giving up and falling back to simply grabbing a
desktop image (but note that this takes a few seconds, so if
you don't actually have any video sources hooked up, you should
consider turning off video grabbing by setting grabVideoProba‐
bility to 0.0.)
videoGain (Float)
The amount by which to brighten the grabbed image. This
defaults to 2.2.
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.
SEE ALSO
X(1), xscreensaver(1), xlock(1)
COPYRIGHT
Copyright © 1992 by Scott Draves.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, pro‐
vided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in sup‐
porting documentation.
AUTHOR
Scott Graves <spot@cs.cmu.edu>.
Ability to run standalone or with xscreensaver added by Jamie Zawinski
<jwz@jwz.org>, 18-Oct-93.
X Version 11 24-Nov-97 XScreenSaver(1)
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