CTreeCtrl树基础MFC知识

头文件XXXX.h

protected:
	HICON m_hIcon;
	// 生成的消息映射函数
	virtual BOOL OnInitDialog();
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	DECLARE_MESSAGE_MAP()
public:
	afx_msg void OnTvnSelchangedTree1(NMHDR *pNMHDR, LRESULT *pResult);
	CTreeCtrl m_Tree;
	CEdit m_HAHA;
	CImageList m_list;
	CBitmap   bm[100]; 
	void SetTree(void);
};

XXXXX.cpp

void CMFCTreeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_TREE1, m_Tree);
	DDX_Control(pDX, IDC_HAHA, m_HAHA);
}

BEGIN_MESSAGE_MAP(CMFCTreeDlg, CDialogEx)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, &CMFCTreeDlg::OnTvnSelchangedTree1)
END_MESSAGE_MAP()

HTREEITEM person, kefu;

BOOL CMFCTreeDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	SetTree();
	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CMFCTreeDlg::OnTvnSelchangedTree1(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMTREEVIEW pNMTreeView = reinterpret_cast(pNMHDR);
	UpdateData(true);
	node_name = m_Tree.GetItemText(pNMTreeView->itemNew.hItem);
	SetWindowText(node_name);

	//if(pNMTreeView->itemNew.hItem == root)
	//{
	//	SetDlgItemText(IDC_HAHA, "root");
	//}
	//else if(node_name == "small")
	//{
	//	SetDlgItemText(IDC_HAHA, "small");
	//}

	UpdateData(false);

	*pResult = 0;
}

void CMFCTreeDlg::SetTree(void)
{
	m_Tree.ModifyStyle(NULL, TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT);
	bm[0].LoadBitmap(IDB_BITMAP1); 
	bm[1].LoadBitmap(IDB_BITMAP2);
	m_list.Create(16,16, ILC_MASK,   0,   4);
	m_list.Add(&bm[0],   (COLORREF)0xFFFFFF); 
	m_list.Add(&bm[1],   (COLORREF)0xFFFFFF); 
	m_Tree.SetImageList(&m_list, TVSIL_NORMAL);

	person = m_Tree.InsertItem(_T("最近联系人"), 0, 1);
	kefu = m_Tree.InsertItem(_T("客户"), 1, 0);

	m_Tree.InsertItem(_T("张三1"), 1, 0, person);
	m_Tree.InsertItem(_T("张三2"), 1, 0, person);

	m_Tree.InsertItem(_T("张四1"), 0, 1, kefu);
	m_Tree.InsertItem(_T("张四2"), 0, 1, kefu);
}