DragonFly On-Line Manual Pages

zoom(6)                       XScreenSaver manual                      zoom(6)

NAME
       zoom - wander around magnified desktop

SYNOPSIS
       zoom [-display host:display.screen] [-foreground color] [-background
       color] [-window] [-root] [-mono] [-install] [-visual visual] [-delay
       usecs] [-duration secs] [-lenses] [-pixwidth pixels] [-pixheight
       pixels] [-pixspacex pixels] [-pixspacey pixels] [-lensoffsetx pixels]
       [-lensoffsety pixels] [-fps]

DESCRIPTION
       The zoom program takes an image, magnifies it, and scrolls around it,
       fatbits-style.

       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(1) for more details.

OPTIONS
       zoom accepts the following options:

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

       -root   Draw on the root window.

       -mono   If on a color display, pretend we're on a monochrome display.

       -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.

       -delay microseconds
               Slow it down.

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

       -lenses Instead of doing magnification we just copy an offset region
               from the original image.  If lensoffsetx < pixwidth (and
               similarly for Y) then consecutive regions will overlap, giving
               the effect of looking through an array of lenses.

       -pixwidth pixels
               Width of the magnified pixels.

       -pixheight pixels
               Height of the magnified pixels.

       -pixspacex pixels
               Amount of black space between magnified pixels (X direction).

       -pixspacey pixels
               Amount of black space between magnified pixels (Y direction).

       -lensoffsetx pixels
               Distance in X direction between consecutive copied regions
               (only effective when -lenses used).

       -lensoffsety pixels
               Distance in Y direction between consecutive copied regions
               (only effective when -lenses used).

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.

SEE ALSO
       X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)

COPYRIGHT
       Copyright (C) 2000 by James Macnicol.  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
       James Macnicol <james.macnicol@mailexcite.com>, 20-Nov-2000.  Much code
       was shamelessly stolen from the spotlight hack and a few others.

X Version 11                  5.34 (24-Oct-2015)                       zoom(6)