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RedHat 9 (Linux i386) - man page for xscreensaver-getimage (redhat section 1)

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XScreenSaver(1) 								  XScreenSaver(1)

       xscreensaver-getimage - put some randomly-selected image on the root window

       xscreensaver-getimage [-display host:display.screen] [--verbose] window-id

       The  xscreensaver-getimage  program  is	a  helper program for the xscreensaver hacks that
       manipulate images.  This is not a user-level command.

       This program selects a random image, and puts it on  the  specified  window.   This  image
       might  be a snapshot of the desktop; or a frame captured from the system's video input; or
       a randomly-selected image from disk.

       xscreensaver-getimage reads the ~/.xscreensaver file for  configuration	information.   It
       uses these settings:

	   Whether  it	is  acceptable	to  grab snapshots of the desktop.  The security paranoid
	   might want to turn this off, to avoid letting people see (but not touch!) your desktop
	   while the screen is locked.

	   Whether it is acceptable to grab frames of video from the system's video input.  Grab-
	   bing of video is done by invoking the xscreensaver-getimage-video(1) program.

	   Whether it is acceptable to display random images found on disk.  Selection and  load-
	   ing of images is done by invoking the xscreensaver-getimage-file(1) program.

	   When loading images from disk, this is the directory to search.  The directory will be
	   searched recursively, and all files in it are assumed to be images.

       If none of the three options are set to True,  then  video  colorbars  will  be	displayed

       If  the target window is not the root window, then this program will always grab a desktop
       image.  This means that if an image-manipulating xscreensaver mode is run in a normal win-
       dow, it will always operate on a desktop image; it's only when it is run in -root mode (or
       when invoked by xscreensaver) that it will load image files or grab video.

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

       Copyright  (C)  2001  by Jamie Zawinski.  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.

       Jamie Zawinski <jwz@jwz.org>, 14-Apr-01

X Version 11				03-Feb-2003 (4.07)			  XScreenSaver(1)
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