<map id="Graphical Class Hierarchy" name="Graphical Class Hierarchy">
<area shape="rect" id="Node000000" title=" " alt="" coords="5,31,169,57"/>
<area shape="rect" id="Node000001" href="$classLettersWidget.html" title=" " alt="" coords="217,5,319,32"/>
<area shape="poly" id="edge51_Node000000_Node000001" title=" " alt="" coords="184,28,216,23,217,28,185,33"/>
<area shape="rect" id="Node000002" href="$classTreeNode.html" title="Example implementation of a single tree list node." alt="" coords="229,56,307,83"/>
<area shape="poly" id="edge52_Node000000_Node000002" title=" " alt="" coords="184,55,229,61,228,67,184,60"/>
</map>
