gn=top>
<td align=center><a name="TIDXTITLE" href="../rcvars.html#TIDXTITLE"><strong><code>$TIDXTITLE$</code></strong></a></td>
<td>Title of thread index.</td>
</tr>
<tr valign=top>
<td align=center><a name="TLEVEL" href="../rcvars.html#TLEVEL"><strong><code>$TLEVEL$</code></strong></a></td>
<td>Numeric level of message in thread, starting with 0.</td>
</tr>
<tr valign=top>
<td align=center><a name="TSLICE" href="../rcvars.html#TSLICE"><strong><code>$TSLICE$</code></strong></a></td>
<td>A <em>slice</em> of 