1zoom(6x)                      XScreenSaver manual                     zoom(6x)
2
3
4

NAME

6       zoom - wander around magnified desktop
7

SYNOPSIS

9       zoom  [-display  host:display.screen]  [-foreground color] [-background
10       color] [-window] [-root] [-mono] [-install]  [-visual  visual]  [-delay
11       usecs]  [-lenses]  [-pixwidth  pixels]  [-pixheight pixels] [-pixspacex
12       pixels] [-pixspacey pixels] [-lensoffsetx pixels] [-lensoffsety pixels]
13

DESCRIPTION

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

OPTIONS

25       zoom accepts the following options:
26
27       -window Draw on a newly-created window.  This is the default.
28
29       -root   Draw on the root window.
30
31       -mono   If on a color display, pretend we're on a monochrome display.
32
33       -install
34               Install a private colormap for the window.
35
36       -visual visual
37               Specify  which  visual  to use.  Legal values are the name of a
38               visual class, or the id number (decimal or hex) of  a  specific
39               visual.
40
41       -delay microseconds
42               Slow it down.
43
44       -lenses Instead  of  doing  magnification we just copy an offset region
45               from the original image.  If lensoffsetx < pixwidth (and  simi‐
46               larly  for Y) then consecutive regions will overlap, giving the
47               effect of looking through an array of lenses.
48
49       -pixwidth pixels
50               Width of the magnified pixels.
51
52       -pixheight pixels
53               Height of the magnified pixels.
54
55       -pixspacex pixels
56               Amount of black space between magnified pixels (X direction).
57
58       -pixspacey pixels
59               Amount of black space between magnified pixels (Y direction).
60
61       -lensoffsetx pixels
62               Distance in X  direction  between  consecutive  copied  regions
63               (only effective when -lenses used).
64
65       -lensoffsety pixels
66               Distance  in  Y  direction  between  consecutive copied regions
67               (only effective when -lenses used).
68
69
70       ENVIRONMENT
71
72       DISPLAY to get the default host and display number.
73
74       XENVIRONMENT
75               to get the name of a resource file that  overrides  the  global
76               resources stored in the RESOURCE_MANAGER property.
77

SEE ALSO

79       X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)
80

82       Copyright  ©  2000 by James Macnicol.  Permission to use, copy, modify,
83       distribute, and sell this software and its documentation for  any  pur‐
84       pose  is  hereby granted without fee, provided that the above copyright
85       notice appear in all copies and that both  that  copyright  notice  and
86       this  permission  notice appear in supporting documentation.  No repre‐
87       sentations are made about the suitability of this software for any pur‐
88       pose.  It is provided "as is" without express or implied warranty.
89

AUTHOR

91       James Macnicol <james.macnicol@mailexcite.com>, 20-Nov-2000.  Much code
92       was shamelessly stolen from the spotlight hack and a few others.
93
94
95
96
97X Version 11                 5.05-3 (06-Apr-2008)                     zoom(6x)
Impressum