1 .TH XScreenSaver 1 "20-Nov-2000" "X Version 11"
3 zoom - wander around magnified desktop
6 [\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP]
7 [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install]
8 [\-visual \fIvisual\fP]
10 [\-duration \fIsecs\fP]
12 [\-pixwidth \fIpixels\fP] [\-pixheight \fIpixels\fP]
13 [\-pixspacex \fIpixels\fP] [\-pixspacey \fIpixels\fP]
14 [\-lensoffsetx \fIpixels\fP] [\-lensoffsety \fIpixels\fP]
16 The \fIzoom\fP program takes an image, magnifies it, and scrolls around
19 The image that it manipulates will be grabbed from the portion of
20 the screen underlying the window, or from the system's video input,
21 or from a random file on disk, as indicated by
22 the \fIgrabDesktopImages\fP, \fIgrabVideoFrames\fP,
23 and \fIchooseRandomImages\fP options in the \fI~/.xscreensaver\fP
25 .BR xscreensaver-demo (1)
29 accepts the following options:
32 Draw on a newly-created window. This is the default.
35 Draw on the root window.
38 If on a color display, pretend we're on a monochrome display.
41 Install a private colormap for the window.
43 .B \-visual \fIvisual\fP
44 Specify which visual to use. Legal values are the name of a visual class,
45 or the id number (decimal or hex) of a specific visual.
47 .B \-delay \fImicroseconds\fP
50 .B \-duration \fIseconds\fP
51 How long to run before loading a new image. Default 120 seconds.
54 Instead of doing magnification we just copy an offset region from the original
55 image. If lensoffsetx < pixwidth (and similarly for Y) then consecutive
56 regions will overlap, giving the effect of looking through an array of
59 .B \-pixwidth \fIpixels\fP
60 Width of the magnified pixels.
62 .B \-pixheight \fIpixels\fP
63 Height of the magnified pixels.
65 .B \-pixspacex \fIpixels\fP
66 Amount of black space between magnified pixels (X direction).
68 .B \-pixspacey \fIpixels\fP
69 Amount of black space between magnified pixels (Y direction).
71 .B \-lensoffsetx \fIpixels\fP
72 Distance in X direction between consecutive copied regions (only effective
77 .B \-lensoffsety \fIpixels\fP
78 Distance in Y direction between consecutive copied regions (only effective
87 to get the default host and display number.
90 to get the name of a resource file that overrides the global resources
91 stored in the RESOURCE_MANAGER property.
95 .BR xscreensaver\-demo (1),
96 .BR xscreensaver\-getimage (1)
98 Copyright \(co 2000 by James Macnicol. Permission to use, copy, modify,
99 distribute, and sell this software and its documentation for any purpose is
100 hereby granted without fee, provided that the above copyright notice appear
101 in all copies and that both that copyright notice and this permission notice
102 appear in supporting documentation. No representations are made about the
103 suitability of this software for any purpose. It is provided "as is" without
104 express or implied warranty.
106 James Macnicol <james.macnicol@mailexcite.com>, 20-Nov-2000. Much code was
107 shamelessly stolen from the
109 hack and a few others.