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#!/usr/bin/perl
package X11::Protocol::Ext::DPMS; # The Display Power Management Signaling
# Extension
# This module was originally written in 1998 by Jay Kominek. As of
# February 10th, 2003, he has placed it in the public domain.
use X11::Protocol qw(pad padding padded make_num_hash);
use Carp;
use strict;
use vars '$VERSION';
$VERSION = 0.01;
sub new
{
my($pkg, $x, $request_num, $event_num, $error_num) = @_;
my($self) = {};
# Constants
$x->{'ext_const'}{'DPMSPowerLevels'} = ['DPMSModeOn','DPMSModeStandby',
'DPMSModeSuspend','DPMSModeOff'];
$x->{'ext_const_num'}{'DPMSPowerLevels'} =
{make_num_hash($x->{'ext_const'}{'DPMSPowerLevels'})};
# Events
# Requests
$x->{'ext_request'}{$request_num} =
[
["DPMSGetVersion", sub {
my($self) = shift;
return pack("SS",1,1);
}, sub {
my($self) = shift;
my($data) = @_;
my($major,$minor) = unpack("xxxxxxxxSSxxxxxxxxxxxxxxxxxxxx",$data);
return($major,$minor);
}],
["DPMSCapable", sub {
my($self) = shift;
return "";
}, sub {
my($self) = shift;
my($data) = @_;
my($capable) = unpack("xxxxxxxxCxxxxxxxxxxxxxxxxxxxxxxx",$data);
return($capable);
}],
["DPMSGetTimeouts", sub {
my($self) = shift;
return "";
}, sub {
my($self) = shift;
my($data) = @_;
my($standby,$suspend,$off) =
unpack("xxxxxxxxSSSxxxxxxxxxxxxxxxxxx",$data);
return($standby,$suspend,$off);
}],
["DPMSSetTimeouts", sub {
my($self) = shift;
my($standby,$suspend,$off) = @_;
return pack("SSSxx",$standby,$suspend,$off);
}],
["DPMSEnable", sub {
my($self) = shift;
return "";
}],
["DPMSDisable", sub {
my($self) = shift;
return "";
}],
["DPMSForceLevel", sub {
my($self) = shift;
return(pack("Sxx",$self->num('DPMSPowerLevels',@_[0])));
}],
["DPMSInfo", sub {
my($self) = shift;
return "";
}, sub {
my($self) = shift;
my($data) = @_;
my($power_level,$state) =
unpack("xxxxxxxxSCxxxxxxxxxxxxxxxxxxxxx",$data);
return($self->interp('DPMSPowerLevels',$power_level),$state);
}]
];
my($i);
for $i (0 .. $#{$x->{'ext_request'}{$request_num}})
{
$x->{'ext_request_num'}{$x->{'ext_request'}{$request_num}[$i][0]}
= [$request_num, $i];
}
($self->{'major'}, $self->{'minor'}) = $x->req('DPMSGetVersion');
return bless $self, $pkg;
}
1;
__END__
=head1 NAME
X11::Protocol::Ext::DPMS - Perl module for the X11 Protocol DPMS Extension
=head1 SYNOPSIS
use X11::Protocol;
$x = X11::Protocol->new();
$x->init_extension('DPMS');
=head1 DESCRIPTION
This module is used to control the DPMS features of compliant monitors.
=head1 SYMBOLIC CONSTANTS
This extension adds the constant type DPMSPowerLevels, with values as
defined in the standard.
=head1 REQUESTS
This extension adds several requests, called as shown below:
$x->DPMSGetVersion => ($major, $minor)
$x->DPMSCapable => ($capable)
$x->DPMSGetTimeouts => ($standby_timeout, $suspend_timeout, $off_timeout)
$x->DPMSSetTimeouts($standby_timeout, $suspend_timeout, $off_timeout) => ()
$x->DPMSEnable => ()
$x->DPMSDisable => ()
$x->DPMSForceLevel($power_level) => ()
$x->DPMSInfo => ($power_level,$state)
=head1 AUTHOR
Jay Kominek <jay.kominek@colorado.edu>
=head1 SEE ALSO
L<perl(1)>,
L<X11::Protocol>,
I<X Display Power Management Signaling (DPMS) Extension (X Consortium Standard)>
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