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