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<h3 id="TOP">Index</h3>

<ul><li><a href="#NAME">NAME</a></li>
<li><a href="#CATEGORY">CATEGORY</a></li>
<li><a href="#METHODS">METHODS</a>
<ul><li><a href="#reserve_channels">reserve_channels</a></li>
<li><a href="#group_channel">group_channel</a></li>
<li><a href="#group_channels">group_channels</a></li>
<li><a href="#group_available">group_available</a></li>
<li><a href="#group_count">group_count</a></li>
<li><a href="#group_oldest">group_oldest</a></li>
<li><a href="#group_newer">group_newer</a></li>
<li><a href="#fade_out_group">fade_out_group</a></li>
<li><a href="#halt_group">halt_group</a>
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<h1 id="NAME">NAME</h1><p><a href="#TOP" class="toplink">Top</a></p>
<div id="NAME_CONTENT">
<p>SDL::Mixer::Groups - Audio channel group functions</p>

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<h1 id="CATEGORY">CATEGORY</h1><p><a href="#TOP" class="toplink">Top</a></p>
<div id="CATEGORY_CONTENT">
<p>Mixer</p>

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<h1 id="METHODS">METHODS</h1><p><a href="#TOP" class="toplink">Top</a></p>
<div id="METHODS_CONTENT">

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<h2 id="reserve_channels">reserve_channels</h2>
<div id="reserve_channels_CONTENT">
<pre> my $reserved = SDL::Mixer::Groups::reserve_channels( $num );

</pre>
<p><code>$num</code> is the number of channels to reserve from default mixing. Zero removes all reservations. </p>
<p>Reserve <code>$num</code> channels from being used when playing samples when passing in <code>-1</code> as a channel number to playback functions. 
The channels are reserved starting from channel <code>0</code> to <code>$num-1</code>. Passing in zero will unreserve all channels. Normally SDL_mixer starts 
without any channels reserved.</p>
<p>The following functions are affected by this setting: </p>
<ul>
		<li><a href="/SDL-Mixer-Channels.html#play_channel">SDL::Mixer::Channels::play_channel</a>	</li>
		<li><a href="/SDL-Mixer-Channels.html#play_channel_timed">SDL::Mixer::Channels::play_channel_timed</a>	</li>
		<li><a href="/SDL-Mixer-Channels.html#fade_in_channel">SDL::Mixer::Channels::fade_in_channel</a>	</li>
		<li><a href="/SDL-Mixer-Channels.html#fade_in_channel_timed">SDL::Mixer::Channels::fade_in_channel_timed</a></li>
</ul>

<p>Returns: The number of channels reserved. Never fails, but may return less channels than you ask for, depending on the number of channels 
previously allocated (see <a href="/SDL-Mixer-Channels.html#allocate_channels">SDL::Mixer::Channels::allocate_channels</a>).</p>

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<h2 id="group_channel">group_channel</h2>
<div id="group_channel_CONTENT">
<pre> my $grouped = SDL::Mixer::Groups::group_channel( $channel, $group );

</pre>
<p>Add a channel to group id (any positive integer), or reset it's group to the default group by passing (-1).</p>
<p>Returns: True(1) on success. False(0) is returned when the channel specified is invalid.</p>

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<h2 id="group_channels">group_channels</h2>
<div id="group_channels_CONTENT">
<pre> my $grouped = SDL::Mixer::Groups::group_channels( $from_channel, $to_channel, $group );

</pre>
<p>Add a range of channels to group id (any positive integer), or reset their group to the default group by passing (-1).</p>
<p>Returns: The number of affected channels.</p>

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<h2 id="group_available">group_available</h2>
<div id="group_available_CONTENT">
<pre> my $channel = SDL::Mixer::Groups::group_count( $group );

</pre>
<p><code>group_newer</code> returns the first available channel of this group.</p>

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<h2 id="group_count">group_count</h2>
<div id="group_count_CONTENT">
<pre> my $channels = SDL::Mixer::Groups::group_count( $group );

</pre>
<p><code>group_newer</code> returns the number of channels in this group.</p>

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<h2 id="group_oldest">group_oldest</h2>
<div id="group_oldest_CONTENT">
<pre> my $channel = SDL::Mixer::Groups::group_oldest( $group );

</pre>
<p><code>group_newer</code> returns the channel number which started to play at first.</p>

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<h2 id="group_newer">group_newer</h2>
<div id="group_newer_CONTENT">
<pre> my $channel = SDL::Mixer::Groups::group_newer( $group );

</pre>
<p><code>group_newer</code> returns the channel number which started to play at last.</p>

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<h2 id="fade_out_group">fade_out_group</h2>
<div id="fade_out_group_CONTENT">
<pre> SDL::Mixer::Groups::fade_out_group( $group, $ms );

</pre>
<p>Fades out the channels by the given group id. The fade-out-time is specified by <code>$ms</code>.</p>
<p>Retuns the number of affected channels.</p>

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<h2 id="halt_group">halt_group</h2>
<div id="halt_group_CONTENT">
<pre> SDL::Mixer::Groups::hals_group( $group );

</pre>
<p>Halts the channels by the given group id.</p>
<p>Retuns <code>0</code>.</p>

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