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] [-mono] [-install]  [-visual  visual]  [-delay
11       usecs]  [-duration  secs] [-lenses] [-pixwidth pixels] [-pixheight pix‐
12       els] [-pixspacex  pixels]  [-pixspacey  pixels]  [-lensoffsetx  pixels]
13       [-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-demo(1) for more details.
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OPTIONS

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

84       X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)
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87       Copyright  ©  2000 by James Macnicol.  Permission to use, copy, modify,
88       distribute, and sell this software and its documentation for  any  pur‐
89       pose  is  hereby granted without fee, provided that the above copyright
90       notice appear in all copies and that both  that  copyright  notice  and
91       this  permission  notice appear in supporting documentation.  No repre‐
92       sentations are made about the suitability of this software for any pur‐
93       pose.  It is provided "as is" without express or implied warranty.
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AUTHOR

96       James Macnicol <james.macnicol@mailexcite.com>, 20-Nov-2000.  Much code
97       was shamelessly stolen from the spotlight hack and a few others.
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102X Version 11               5.43-2.fc31 (27-Aug-2019)                  zoom(6x)
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