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7    <title>SetTrackVolume</title>
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10    <h1><CODE><a href="../../../nw/Overview.html">nw</a>::<a href="../../../nw/snd/Overview.html">snd</a>::<a href="../../../nw/snd/SequenceSoundHandle/Overview.html">SequenceSoundHandle</a>::SetTrackVolume</CODE> Member Function</h1>
11    <h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">#include &lt;nw/snd/snd_SequenceSoundHandle.h&gt;
14void SetTrackVolume(
15     <span>u32</span> trackBitFlag,
16     <span>f32</span> volume
17);
18</pre>
19    </div>
20    <h2>Arguments</h2>
21    <div class="section">
22      <table class="arguments">
23        <thead>
24          <tr>
25            <td width="15" />
26            <th>Name</th>
27            <td>Description</td>
28          </tr>
29        </thead>
30        <tr>
31          <td>in</td>
32          <th>trackBitFlag</th>
33          <td>Bit flag for each track.</td>
34        </tr>
35        <tr>
36          <td>in</td>
37          <th>volume</th>
38          <td>Volume change ratio.</td>
39        </tr> </table>
40    </div>
41    <h2>Return Values</h2>
42    <div class="section">
43                None.
44               </div>
45    <h2>Description</h2>
46    <div class="section">
47      <p>Changes the volume of a track in a sequence sound.</p><p>Changes the volume of a sequence track in the sound associated with the handle. If the handle is invalid, the function does nothing.</p><p>The value specified by this function operates independently of other volume parameters, which are mixed together.</p><p>The trackBitFlag argument specifies the track. The tracks are identified from the lower bit in sequence: Track 0, Track 1, Track 2 .... All tracks with enabled bits will have their volume changed. For example, to change the volume of Track 2 and Track 5, use  (1 &lt;&lt; 2) | (1 &lt;&lt; 5); i.e., 0x0024.</p><p>The <span>volume</span> argument specifies a ratio of 0.0 or greater. There is no effect on the volume if 1.0 is specified. If 0.0 is specified, no sound is output. The default value is 1.0.</p><p><B>Note:</B> After being combined with the other volume parameters, the final volume is clamped to the range of 0.0 to 2.0. Twice the original volume may not result even if a value of 2.0 is set with this function.</p></div>
48    <h2>Revision History</h2>
49    <div class="section">
50      <dl class="history">
51        <dt>2010/06/25</dt>
52        <dd>Corrected a mistake (silent status &gt; volume).
53        </dd>
54        <dt>2010/01/22</dt>
55        <dd>Initial version.<br />
56        </dd>
57      </dl>
58    </div>
59  <hr><p>CONFIDENTIAL</p></body>
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