1zoom(6x)                      XScreenSaver manual                     zoom(6x)
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NAME

6       zoom - wander around magnified desktop
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SYNOPSIS

9       zoom [--display host:display.screen] [--foreground color] [--background
10       color] [--window]  [--root]  [--window-id  number][--mono]  [--install]
11       [--visual   visual]   [--delay   usecs]  [--duration  secs]  [--lenses]
12       [--pixwidth pixels] [--pixheight pixels] [--pixspacex pixels]  [--pixs‐
13       pacey pixels] [--lensoffsetx pixels] [--lensoffsety pixels] [--fps]
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DESCRIPTION

16       The  zoom  program takes an image, magnifies it, and scrolls around it,
17       fatbits-style.
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19       The image that it manipulates will be grabbed from the portion  of  the
20       screen underlying the window, or from the system's video input, or from
21       a random file on disk, as indicated by the grabDesktopImages, grabVide‐
22       oFrames,  and  chooseRandomImages  options in the ~/.xscreensaver file;
23       see xscreensaver-settings(1) for more details.
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OPTIONS

26       zoom accepts the following options:
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28       --window
29               Draw on a newly-created window.  This is the default.
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31       --root  Draw on the root window.
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33       --window-id number
34               Draw on the specified window.
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36       --mono  If on a color display, pretend we're on a monochrome display.
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38       --install
39               Install a private colormap for the window.
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41       --visual visual
42               Specify which visual to use.  Legal values are the  name  of  a
43               visual  class,  or the id number (decimal or hex) of a specific
44               visual.
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46       --delay microseconds
47               Slow it down.
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49       --duration seconds
50               How long to run before loading a new image.  Default  120  sec‐
51               onds.
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53       --lenses
54               Instead  of  doing  magnification we just copy an offset region
55               from the original image.  If lensoffsetx < pixwidth (and  simi‐
56               larly  for Y) then consecutive regions will overlap, giving the
57               effect of looking through an array of lenses.
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59       --pixwidth pixels
60               Width of the magnified pixels.
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62       --pixheight pixels
63               Height of the magnified pixels.
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65       --pixspacex pixels
66               Amount of black space between magnified pixels (X direction).
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68       --pixspacey pixels
69               Amount of black space between magnified pixels (Y direction).
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71       --lensoffsetx pixels
72               Distance in X  direction  between  consecutive  copied  regions
73               (only effective when -lenses used).
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75       --lensoffsety pixels
76               Distance  in  Y  direction  between  consecutive copied regions
77               (only effective when -lenses used).
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80       ENVIRONMENT
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82       DISPLAY to get the default host and display number.
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84       XENVIRONMENT
85               to get the name of a resource file that  overrides  the  global
86               resources stored in the RESOURCE_MANAGER property.
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88       XSCREENSAVER_WINDOW
89               The window ID to use with --root.
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SEE ALSO

92       X(1),  xscreensaver(1),  xscreensaver-settings(1),  xscreensaver-getim‐
93       age(6x)
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96       Copyright © 2000 by James Macnicol.  Permission to use,  copy,  modify,
97       distribute,  and  sell this software and its documentation for any pur‐
98       pose is hereby granted without fee, provided that the  above  copyright
99       notice  appear  in  all  copies and that both that copyright notice and
100       this permission notice appear in supporting documentation.   No  repre‐
101       sentations are made about the suitability of this software for any pur‐
102       pose.  It is provided "as is" without express or implied warranty.
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AUTHOR

105       James Macnicol <james.macnicol@mailexcite.com>, 20-Nov-2000.  Much code
106       was shamelessly stolen from the spotlight hack and a few others.
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111X Version 11               6.06-1.fc37 (12-Dec-2022)                  zoom(6x)
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