slidescreen(6)

NAME
slidescreen - permute the screen image like an 8-puzzle

SYNOPSIS
slidescreen [--display host:display.screen] [--background color] [--grid-size pixels] [--ibw pixels] [--increment pixels] [--delay usecs] [--delay2 usecs] [--duration secs] [--window] [--root] [--window-id number] [--install] [--visual visual] [--fps]

DESCRIPTION
The slidescreen program takes an image, divides it into a grid, deletes a random square of that grid, and then randomly slides one of the neighbors of this "hole" into the hole (and repeat.) 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-settings(1) for more details.

OPTIONS
slidescreen accepts the following options:

--window
    Draw on a newly-created window. This is the default.

--root
    Draw on the root window.

--window-id number
    Draw on the specified 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.

--grid-size pixels
    The size of the grid cells. Default 70 pixels.

--ibw pixels
    The size of the "gutter" between grid cells. Default 4 pixel.

--increment pixels
    How many pixels by which a piece should be moved when sliding to a new location. Default 10 pixels.

--delay microseconds
    How much of a delay should be introduced between steps of the animation of the motion of each segment. Default 50000, which is 0.05 seconds. This is closely related to the --increment parameter.

--delay2 microseconds
    How much of a delay should be introduced between the end of the motion of one segment and the beginning of the motion of another. Default 1000000, which is one second.

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

--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.

XSCREENSAVER_WINDOW
    The window ID to use with --root.

SEE ALSO
X(1), xscreensaver(1), xscreensaver-settings(1), xscreensaver-getimage(6)

COPYRIGHT
Copyright © 1992 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>, 3-dec-92.