jigsaw man page on Tru64

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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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