windows 编程

创建TreeView控件，响应NM_CLICK消息得到当前点击的节点的信息(SDK版本)

分类： VC/MFC Development 2011-08-01 15:30 493人阅读 评论(0) 收藏 举报

 

// 创建TreeView控件
case WM_CREATE:
        {
            INITCOMMONCONTROLSEX icc = {sizeof(icc), ICC_TREEVIEW_CLASSES};
            if(InitCommonControlsEx(&icc))
            {
                HWND hTreeView = CreateWindow
                    (
                    _T("SysTreeView32"),
                    _T("TreeView"),
                    WS_CHILD | WS_VISIBLE | WS_BORDER | TVS_FULLROWSELECT | TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT,
                    0, 0, 100, 100,
                    hWnd,
                    (HMENU)0x11,
                    hInst,
                    NULL
                    );
                TVINSERTSTRUCT ti = {0};

                TCHAR szText[MAX_COUNT] = {0};
                ti.item.mask = TVIF_TEXT;
                ti.item.cchTextMax = MAX_COUNT;
                ti.item.pszText = szText;
                _stprintf(szText, _T("%s"), _T("AAA"));
                TreeView_InsertItem(hTreeView, &ti);
                _stprintf(szText, _T("%s"), _T("BBB"));
                TreeView_InsertItem(hTreeView, &ti);
                _stprintf(szText, _T("%s"), _T("CCC"));
                TreeView_InsertItem(hTreeView, &ti);
            }
        }
        break;

// 响应NM_CLICK的WM_NOTIFY消息
case WM_NOTIFY:
        {
            LPNMHDR lpnmh = (LPNMHDR)lParam;
            if(NM_CLICK == lpnmh->code)
            {
                DWORD dwPos = GetMessagePos();
                POINT pt;
                pt.x = LOWORD(dwPos);
                pt.y = HIWORD(dwPos);
                ScreenToClient(lpnmh->hwndFrom, &pt);
                TVHITTESTINFO ht = {0};
                ht.pt = pt;
                ht.flags = TVHT_ONITEM;
                HTREEITEM hItem = TreeView_HitTest(lpnmh->hwndFrom, &ht);
                TVITEM ti = {0};
                ti.mask = TVIF_HANDLE | TVIF_TEXT;
                TCHAR buf[MAX_COUNT] = {0};
                ti.cchTextMax = MAX_COUNT;
                ti.pszText = buf;
                ti.hItem = hItem;
                TreeView_GetItem(lpnmh->hwndFrom, &ti);
                MessageBox(hWnd, buf, NULL, 0);
            }
        }
        break;