.TH XScreenSaver 1 "20-Nov-2000" "X Version 11"
.SH NAME
-zoom - wander around magified desktop
+zoom - wander around magnified desktop
.SH SYNOPSIS
.B zoom
-[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-delay \fIusecs\fP] [\-lenses] [\-pixwidth \fIpixels\fP] [\-pixheight \fIpixels\fP] [\-pixspacex \fIpixels\fP] [\-pixspacey \fIpixels\fP] [\-lensoffsetx \fIpixels\fP] [\-lensoffsety \fIpixels\fP]
+[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP]
+[\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install]
+[\-visual \fIvisual\fP]
+[\-delay \fIusecs\fP]
+[\-duration \fIsecs\fP]
+[\-lenses]
+[\-pixwidth \fIpixels\fP] [\-pixheight \fIpixels\fP]
+[\-pixspacex \fIpixels\fP] [\-pixspacey \fIpixels\fP]
+[\-lensoffsetx \fIpixels\fP] [\-lensoffsety \fIpixels\fP]
+[\-fps]
.SH DESCRIPTION
-The \fIzoom\fP program magnifies a portion of the desktop and moves around.
+The \fIzoom\fP 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 \fIgrabDesktopImages\fP, \fIgrabVideoFrames\fP,
+and \fIchooseRandomImages\fP options in the \fI~/.xscreensaver\fP
+file; see
+.BR xscreensaver-demo (1)
+for more details.
.SH OPTIONS
.I zoom
accepts the following options:
.B \-delay \fImicroseconds\fP
Slow it down.
.TP 8
+.B \-duration \fIseconds\fP
+How long to run before loading a new image. Default 120 seconds.
+.TP 8
.B \-lenses
Instead of doing magnification we just copy an offset region from the original
image. If lensoffsetx < pixwidth (and similarly for Y) then consecutive
Amount of black space between magnified pixels (Y direction).
.TP 8
.B \-lensoffsetx \fIpixels\fP
-Distance in X direction between consective copied regions (only effective
+Distance in X direction between consecutive copied regions (only effective
when
.I -lenses
used).
.TP 8
.B \-lensoffsety \fIpixels\fP
-Distance in Y direction between consective copied regions (only effective
+Distance in Y direction between consecutive copied regions (only effective
when
.I -lenses
used).
stored in the RESOURCE_MANAGER property.
.SH SEE ALSO
.BR X (1),
-.BR xscreensaver (1)
+.BR xscreensaver (1),
+.BR xscreensaver\-demo (1),
+.BR xscreensaver\-getimage (1)
.SH COPYRIGHT
Copyright \(co 2000 by James Macnicol. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any purpose is