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