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spotlight(6)                  XScreenSaver manual                 spotlight(6)


NAME

       spotlight - move spotlight around desktop


SYNOPSIS

       spotlight [-display host:display.screen] [-foreground color]
       [-background color] [-window] [-root] [-mono] [-install] [-visual
       visual] [-delay usecs] [-duration secs] [-radius pixels] [-fps]


DESCRIPTION

       The spotlight program takes an image and exposes small sections of it
       as if through a wandering spotlight beam.

       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

       spotlight 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.

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

       -radius pixels
               Radius of the spotlight in pixels.

       -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.


SEE ALSO

       X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)


COPYRIGHT

       Copyright (C) 1999 by Rick Schultz.  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.


CREDITS

       Hacked together by Rick Schultz <rick@skapunx.net>, based on StefView
       for BackSpace by Darcy Brockbank and on several other xscreensaver
       hacks.

X Version 11                  5.34 (24-Oct-2015)                  spotlight(6)

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