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<FONT COLOR="#AOAO99">Expanding a branch</FONT></H3></CENTER>

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The treeview has built in support for expanding expanding the outline one
level at a time. If you want to completely expand a branch, the code below
will help. It uses recursion to expand all items. The last line, that is,
the call to EnsureVisible() is useful when this code is hooked up to a
user interface. After expanding the outline branch, the previously selected
item may have scrolled off and calling EnsureVisible() brings it back.
<BR>&nbsp;
<PRE><TT><FONT COLOR="#990000">// ExpandBranch - Expands a branch completely
// hti&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - Handle of the tree item to expand
void CTreeCtrlX::ExpandBranch( HTREEITEM hti )
{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if( ItemHasChildren( hti ) ){
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expand( hti, TVE_EXPAND );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hti = GetChildItem( hti );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; do{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ExpandBranch( hti );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }while( (hti = GetNextSiblingItem( hti )) != NULL );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EnsureVisible( GetSelectedItem() );
}</FONT></TT>
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