e debug hook. You should use the values defined in &lsquo;ftobjs.h&rsquo;, e.g., &lsquo;FT_DEBUG_HOOK_TRUETYPE&rsquo;.</p>
</td></tr>
<tr valign=top><td><b>debug_hook</b></td><td>
<p>The function used to debug the interpreter.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>Currently, four debug hook slots are available, but only two (for the TrueType and the Type&nbsp;1 interpreter) are defined.</p>