.TH XScreenSaver 1 "10-Oct-03" "X Version 11"
.SH NAME
xanalogtv - Simulate reception on an old analog TV set
.SH SYNOPSIS
.B xanalogtv
[\-display \fIhost:display.screen\fP] [\-window] [\-root] [\-install]
[\-visual \fIvisual\fP]
[\-cycle] [\-no-cycle]
[\-fps]
.SH DESCRIPTION
.I xanalogtv
shows a simulation of an old TV set showing test patterns and any
other images you have provided. It reproduces a wide range of TV
reception bummage: snow, bloom, ghosting, and loss of vertical and
horizontal sync. It also simulates the TV warming up. It will cycle
through 12 channels, some with images you give it, and some with color
bars or nothing but static.
.PP
The images that it uses 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. It looks best with a video input or
your digital photo collection.
.PP
.SH OPTIONS
.I xanalogtv
accepts the following options:
.TP 8
.B \-window
Draw on a newly-created window. This is the default.
.TP 8
.B \-root
Draw on the root window.
.TP 8
.B \-install
Install a private colormap for the window.
.TP 8
.B \-visual \fIvisual\fP
Specify which visual to use. Legal values are the name of a visual class,
or the id number (decimal or hex) of a specific visual.
.TP 8
.B \-fps
Display the current frame rate and CPU load.
.SH ENVIRONMENT
.PP
.TP 8
.B DISPLAY
to get the default host and display number.
.TP 8
.B XENVIRONMENT
to get the name of a resource file that overrides the global resources
stored in the RESOURCE_MANAGER property.
.SH X RESOURCES
Notable X resources supported include the following which correspond
to standard TV controls:
.BR analogTVTint ,
.BR analogTVColor ,
.BR analogTVBrightness ,
and
.BR analogTVContrast .
They range from 0 to 100, except for tint which is an angle
between -180 and +180.
.SH SEE ALSO
.BR X (1),
.BR xteevee (MANSUFFIX),
.BR apple2 (MANSUFFIX),
.BR bsod (MANSUFFIX),
.BR xscreensaver (1),
.BR xscreensaver\-demo (1),
.BR xscreensaver\-getimage (1)
.SH COPYRIGHT
Copyright \(co 2003 by Trevor Blackwell. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any purpose is
hereby granted without fee, provided that the above copyright notice appear
in all copies and that both that copyright notice and this permission notice
appear in supporting documentation. No representations are made about the
suitability of this software for any purpose. It is provided "as is" without
express or implied warranty.
.SH AUTHOR
Trevor Blackwell <tlb@tlb.org>
