2013-08-26 13:25:10 -06:00
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.\" $OpenBSD: xvctl.1,v 1.3 2013/08/26 19:25:10 espie Exp $
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2006-11-26 03:57:44 -07:00
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.\"
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.\" Copyright (c) 2001 Marc Espie
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.\"
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd November 9, 2001
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.Dt XVCTL 1
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.Os
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.Sh NAME
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.Nm xvctl
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.Nd get or set xv extension values
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.Sh SYNOPSIS
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.Nm xvctl
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.Op Fl n
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.Op Fl d Ar display
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.Op Fl s Ar screen
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.Op Fl A Ar adaptor
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.Ar name ...
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.Nm xvctl
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.Op Fl n
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.Op Fl d Ar display
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.Op Fl s Ar screen
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.Op Fl A Ar adaptor
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.Fl w
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.Ar name=value ...
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.Nm xvctl
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.Op Fl n
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.Op Fl d Ar display
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.Op Fl s Ar screen
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.Op Fl A Ar adaptor
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.Fl a
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.Sh DESCRIPTION
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The
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.Nm
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utility retrieves the Xvideo extension attributes and
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allows the user to set them.
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.Pp
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For instance, this can be used to change the contrast or brightness of an
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external video program.
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2010-03-20 14:13:27 -06:00
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.Pp
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The options are as follows:
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.Bl -tag -width xxx
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.It Fl d Ar display
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affect the display named
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.Ar display ,
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instead of the default display.
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.It Fl s Ar screen
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affect screen #
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.Ar screen .
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By default, the first screen with video adaptors will be chosen.
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.It Fl A Ar adaptor
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affect adaptor #
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.Ar adaptor .
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By default, the first display adaptor will be chosen.
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.It Fl a
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list all the currently available gettable attributes.
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2013-08-26 13:25:10 -06:00
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This is the default, if no parameters are givne.
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2006-11-26 03:57:44 -07:00
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.It Fl n
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suppress printing of the field name, only output the field value.
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Useful for setting shell variables.
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.El
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.Sh SEE ALSO
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.Xr xvinfo 1 ,
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.Xr Xv 3x
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