CTreeCtrl子节点单击事件如何获取？

[liwei84516]

void CAdmindlg::OnNMClickTreePowers(NMHDR *pNMHDR, LRESULT *pResult)
{
//// TODO: Add your control notification handler code here
CTreeCtrl* tree = (CTreeCtrl*)GetDlgItem( IDC_TREE_POWERS );
HTREEITEM root = tree->GetRootItem();

TVHITTESTINFO ht ;
GetCursorPos(&ht.pt) ;
tree->ScreenToClient(&ht.pt) ;
ht.flags = TVHT_ABOVE ;

HTREEITEM hItem = tree->HitTest(&ht);
if (hItem == root)
{
BOOL bChecked = tree->GetCheck(hItem);
if (tree->ItemHasChildren(hItem))
{
HTREEITEM hChildItem = tree->GetChildItem(hItem);
HTREEITEM hNextItem = hChildItem;

while (hNextItem != NULL)
{
tree->SetCheck( hNextItem, !bChecked );
hNextItem = tree->GetNextItem(hNextItem, TVGN_NEXT);
}
}
}
*pResult = 0;
}

这个只能实现，我单击节点以后，其后面的子节点可以全部选中，当我单击子节点的时候，如果之前是选中状态，前面的勾就去掉了，没有选中的话，单击后就选中。但是我不能获取到这个消息！应该如何实现才能获取到这个单击子节点的消息呢？

[liwei84516]

？