jigsaw man page on DigitalUNIX
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XScreenSaver(1) XScreenSaver(1)
NAME
jigsaw - permute the screen image like a jigsaw puzzle
SYNOPSIS
jigsaw [-display host:display.screen] [-background color] [-delay
usecs] [-window] [-root] [-install] [-visual visual]
DESCRIPTION
The jigsaw program takes an image of the screen, carves it up into a
jigsaw puzzle, shuffles it, and then solves it.
OPTIONS
jigsaw accepts the following options:
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-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
How long to wait between shuffling pieces; default 700000, or
0.7 seconds.
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)
COPYRIGHT
Copyright © 1997 by Jamie Zawinski. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any pur‐
pose 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 repre‐
sentations are made about the suitability of this software for any pur‐
pose. It is provided "as is" without express or implied warranty.
AUTHOR
Jamie Zawinski <jwz@jwz.org>, 25-Nov-97.
X Version 11 25-Nov-97 XScreenSaver(1)
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