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xscreensaver-getimage(1)


NAME

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

SYNOPSIS

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

DESCRIPTION

   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 or pixmap.  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.

   If only a window ID is specified, the image will be painted there.   If
   both  a window ID and a pixmap ID are specified, then the image will be
   painted on the pixmap; and the window may be modified as a side-effect.

OPTIONS

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

   grabDesktopImages
       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.

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

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

   imageDirectory
       When loading images from disk, this is the directory to  find  them
       in.  The directory will be searched recursively for images.

       It  may  also  be  the  URL of an RSS or Atom feed, in which case a
       random image from that feed will be selected instead.  The contents
       of  the  feed  will be cached locally and refreshed periodically as
       needed.

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

BUGS

   When  grabbing desktop images, the window argument will be unmapped and
   have its contents modified, causing flicker.   (This  does  not  happen
   when loading image files or video frames.)

SEE ALSO

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

COPYRIGHT

   Copyright  2001-2011 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.

AUTHOR

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



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