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7    <title>SequenceUserprocCallback</title>
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10    <h1><CODE><a href="../../nw/Overview.html">nw</a>::<a href="../../nw/snd/Overview.html">snd</a>::SequenceUserprocCallback</CODE> Type</h1>
11    <h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">#include &lt;nw/snd/snd_SequenceSoundPlayer.h&gt;
14typedef void(* nw::snd::SequenceUserprocCallback)(u16 procId, SequenceUserprocCallbackParam *param, void *arg);</pre>
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16    <h2>Description</h2>
17    <div class="section">
18      <p>The callback of a user procedure that can be used by sequence sounds.</p><p>This callback is invoked by the <span>userproc</span> command in the sequence data. It is invoked from the sound thread during the frame in which the <span>userproc</span> command was processed.</p><p>The <span>procId</span> argument is passed the value that was specified as a parameter to the sequence data's <span>userproc</span> command.</p><p>The <span>param</span> argument is a parameter that can be used within the callback. The value set as data can be accessed. Overwrite this value to apply it to sound data.</p><p>For details on the <span>userproc</span> command, see the Sequence Data Manual.</p></div>
19    <h2>See Also</h2>
20    <div class="section">
21      <p class="reference"><a href="../../nw/snd/SoundArchivePlayer/SetSequenceUserprocCallback.html">SoundArchivePlayer::SetSequenceUserprocCallback</a>, <a href="../../nw/snd/SequenceUserprocCallbackParam/Overview.html">SequenceUserprocCallbackParam</a><br /> </p>
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