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72 lines
1.9 KiB
HTML
72 lines
1.9 KiB
HTML
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<title>libvorbis - function - vorbis_comment_query</title>
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<link rel=stylesheet href="style.css" type="text/css">
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</head>
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<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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<table border=0 width=100%>
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<tr>
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<td><p class=tiny>libvorbis documentation</p></td>
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<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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</table>
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<h1>vorbis_comment_query</h1>
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<p><i>declared in "vorbis/codec.h";</i></p>
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<p>This function retrieves a comment string for a given tag in a
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<a href="vorbis_comment.html">vorbis_comment</a> structure.</p>
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<table border=0 color=black cellspacing=0 cellpadding=7>
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<tr bgcolor=#cccccc>
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<td>
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<pre><b>
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extern char *vorbis_comment_query(vorbis_comment *vc, const char *tag, int count);
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</b></pre>
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</td>
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</tr>
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</table>
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<h3>Parameters</h3>
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<dl>
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<dt><i>vc</i></dt>
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<dd>Pointer to the vorbis_comment structure.</dd>
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<dt><i>tag</i></dt>
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<dd>Pointer to a null-terminated string of the comment tag to look
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for. Tags are compared case-insensitively.</dd>
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<dt><i>count</i></dt>
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<dd>The index of the comment string to retrieve. A value of 0 indicates
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the first comment whose tag matches <i>tag</i>. Use
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<a href="vorbis_comment_query_count.html">vorbis_comment_query_count</a>
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to determine the number of matching comments.</dd>
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</dl>
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<h3>Return Values</h3>
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<blockquote>
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<li>A pointer to the comment string. The underlying buffer is owned by
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the vorbis_comment structure.</li>
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<li>NULL on a nonexistent tag or if <i>count</i> is greater than or
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equal to the number of matching comments.</li>
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</blockquote>
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<p>
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<br><br>
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<hr noshade>
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<table border=0 width=100%>
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<tr valign=top>
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<td><p class=tiny>copyright © 2010 Xiph.Org</p></td>
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<td align=right><p class=tiny><a href="https://xiph.org/vorbis/">Ogg Vorbis</a></p></td>
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</tr><tr>
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<td><p class=tiny>libvorbis documentation</p></td>
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<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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</tr>
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</table>
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</body>
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</html>
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