MFC树控件CTreeCtrl

    //图片Icon
    HICON icons[4];
    //获取全局的APP对象
    icons[0] = AfxGetApp()->LoadIconW(IDI_ICON1);//IDI_ICON1为图片ID
    icons[1] = AfxGetApp()->LoadIconW(IDI_ICON2);//...
    icons[2] = AfxGetApp()->LoadIconW(IDI_ICON3);
    icons[3] = AfxGetApp()->LoadIconW(IDI_ICON4);

    //设置使用的图片
    //创建图片
    m_imagelist.Create(30, 30, ILC_COLOR32, 3, 3);
    for (int i = 0; i < 4; i++)
    {
        m_imagelist.Add(icons[i]);
    }

    //准备图片
    m_tree.SetImageList(&m_imagelist, TVSIL_NORMAL);

    //创建节点
    //参数 1.显示内容 2，3显示图片  4.父节点
    HTREEITEM rootItem = m_tree.InsertItem(TEXT("根节点"), 0, 0, NULL);
    HTREEITEM parentItem = m_tree.InsertItem(TEXT("父节点"), 1, 1, rootItem);
    HTREEITEM subItem1 = m_tree.InsertItem(TEXT("子节点"), 2, 2, parentItem);
    HTREEITEM subItem2 = m_tree.InsertItem(TEXT("子节点"), 2, 2, parentItem);

    //设置默认选中
    m_tree.SelectItem(subItem2);