void EnumTreeItems(CTreeCtrl *aTree,HTREEITEM hItem)
{
HTREEITEM hItemTmp;
while(hItem != NULL){
do something about hItem;
hItemTmp = aTree->GetChildItem(hItem);
if (hItemTmp)EnumTreeItems(aTree,hItemTmp);
hItem = aTree->GetNextSiblingItem(hItem);
}
}