MFC 实现CTreeCtrl单选

void CDepartmenManager::SetUncheck(HTREEITEM hTree)
{
	if (!hTree){
		return;
	}
	m_DePartmentView.SetCheck(hTree, 0);
	HTREEITEM hChild = m_DePartmentView.GetChildItem(hTree);
	if (hChild){
		SetUncheck(hChild);
	}
	else{
		return;
	}
	HTREEITEM hBrothor = m_DePartmentView.GetNextSiblingItem(hChild);
	while (hBrothor){
		if (hBrothor){
			SetUncheck(hBrothor);
		}
		else{
			return;
		}
		hBrothor = m_DePartmentView.GetNextSiblingItem(hBrothor);
	}
}

void CDepartmenManager::OnNMClickTree1(NMHDR *pNMHDR, LRESULT *pResult)
{
	CPoint point;
	GetCursorPos(&point);//获得鼠标点击的位置
	m_DePartmentView.ScreenToClient(&point);//转化为客户坐标

	SetUncheck(hRoot);
	UINT uFlags;
	CurrentItem = m_DePartmentView.HitTest(point, &uFlags);//获得当前点击节点的ITEM

	if (uFlags & TVHT_ONITEM){
		BOOL bState = m_DePartmentView.GetCheck(CurrentItem);
		m_DePartmentView.SetCheck(CurrentItem, bState);
	}
	
	*pResult = 0;
}