Miss_Easy的专栏

void CMenuCreatDlg::OnMENUITEMexpandtree() //展开所有节点{ // TODO: Add your command handler code here MyExpandTree(m_tree.GetRootItem()); } void CMenuCreatDlg::MyExpandTree(HTREEITEM hTreeItem

第一步：hThermalItemOne = m_treeThermal.GetChildItem(hRootThermal);//表示第一分类节点的句柄if(m_treeThermal){ m_treeThermal.SelectItem(hThermalItemOne);//选中}第二步：设置CtreeCtrl的属性Always Show Selection为：True