XScreenSaver(r)                                   XScreenSaver(r)



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

SYNOPSIS
       slidescreen  [-display  host:display.screen]  [-background
       color] [-grid-size pixels] [-ibw pixels] [-increment  pix-
       els]  [-delay  usecs]  [-delay2  usecs]  [-window] [-root]
       [-install] [-visual visual]

DESCRIPTION
       The slidescreen program takes an image, divides it into  a
       grid,  deletes a random square of that grid, and then ran-
       domly 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-demo(o) 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.

       -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 1 pixel.

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

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

       -delay 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.

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_MAN-
               AGER property.

SEE ALSO
       X(X),  xscreensaver(r),   xscreensaver-demo(o),   xscreen-
       saver-getimage(e)

COPYRIGHT
       Copyright  (C) 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.



X Version 11                24-Nov-97             XScreenSaver(r)