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authorSimon Rettberg2018-10-16 10:08:48 +0200
committerSimon Rettberg2018-10-16 10:08:48 +0200
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treecbddf8e50f35a9c6e878a5bfe3c6d625d99e12ba /hacks/vfeedback.man
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+.TH XScreenSaver 1 "" "X Version 11"
+.SH NAME
+vfeedback - Simulates video feedback.
+.SH SYNOPSIS
+.B vfeedback
+[\-display \fIhost:display.screen\fP]
+[\-visual \fIvisual\fP]
+[\-window]
+[\-root]
+[\-tv-color \fInumber\fP]
+[\-tv-tint \fInumber\fP]
+[\-noise \fInumber\fP]
+[\-tv-brightness \fInumber\fP]
+[\-tv-contrast \fInumber\fP]
+[\-fps]
+.SH DESCRIPTION
+Simulates video feedback: pointing a video camera at an NTSC television.
+.SH OPTIONS
+.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 \-window
+Draw on a newly-created window. This is the default.
+.TP 8
+.B \-root
+Draw on the root window.
+.TP 8
+.B \-tv-color \fInumber\fP
+Color Knob. 0 - 1000. Default: 70.
+.TP 8
+.B \-tv-tint \fInumber\fP
+Tint Knob. 0 - 100. Default: 5.
+.TP 8
+.B \-noise \fInumber\fP
+Analog noise. 0.0 - 0.2. Default: 0.02.
+.TP 8
+.B \-darken \fInumber\fP
+Darken the looped image. 0.0 - 1.0. Default: 0.7.
+.TP 8
+.B \-tv-brightness \fInumber\fP
+Brightness Knob. 0.0 - 100.0. Default: 3.0.
+.TP 8
+.B \-tv-contrast \fInumber\fP
+Contrast Knob. 0 - 1500. Default: 1000.
+.TP 8
+.B \-fps | \-no-fps
+Whether to show a frames-per-second display at the bottom of the screen.
+.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 SEE ALSO
+.BR X (1),
+.BR xscreensaver (1)
+.SH COPYRIGHT
+Copyright \(co 2018 by Jamie Zawinski. 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
+Jamie Zawinski.