c++ - 使我的 GUI 可通过键盘访问(Xp、Visual Studio、C++)

Question

我已经构建了一个带有按钮、按钮组、编辑、列表框...等的 GUI，但现在我想知道如何通过键盘访问我的 GUI，我的意思是，通过按 Tab 更改焦点按钮。有人知道如何做到这一点吗？我使用的是 Windows Xp，GUI 是使用 Visual Studio 2008 用 C++ 编写的。

非常感谢

更新:

INT APIENTRY _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: Place code here.
    MSG msg;
    HACCEL hAccelTable;

    INITCOMMONCONTROLSEX ics;
    ics.dwSize = sizeof(ics);
    ics.dwICC = ICC_WIN95_CLASSES;
    InitCommonControlsEx(&ics);

    // Initialize global strings
    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadString(hInstance, IDC_PRUEBA, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDA_ACCEL_TABLE));

    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if ((!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) && (!IsDialogMessage(msg.hwnd, &msg))) 
        //if ((!IsDialogMessage(msg.hwnd, &msg)) & (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg) )) 
        //if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}

我的 GUI 中有很多控件，我应该将 WS_TABSTOP 放入所有控件中吗？如果我有一组按钮怎么办...我应该将 WS_TABSTOP 放在每个按钮和组中吗？仅在单个按钮中？

例如，我将粘贴我创建的组:

INT CrearControles(HWND hwnd, LPARAM lParam) {
    HINSTANCE hInstance;
    HFONT hfont;
    HWND hctrl;
    int i;

    hInstance = ((LPCREATESTRUCT)lParam)->hInstance;
    hfont = (HFONT)GetStockObject( DEFAULT_GUI_FONT );

    /* Insertar controles */    
    hctrl = CreateWindowEx(
        0,
        "BUTTON",        /* Nombre de la clase */
        "Rol",       /* Texto del título */
        BS_GROUPBOX | WS_CHILD | WS_VISIBLE | WS_GROUP , /* Estilo */
        20, 15,           /* Posición */
        180, 100,          /* Tamaño */
        hwnd,            /* Ventana padre */
        (HMENU)GRUPO_ROL,/* Identificador del control */
        hInstance,       /* Instancia */
        NULL);           /* Sin datos de creación de ventana */ 
    SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));

    hctrl = CreateWindowEx(0, "BUTTON", "Receptor", BS_NOTIFY | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 30, 35,
      70, 25, hwnd, (HMENU)BOTON_RECEPTOR, hInstance, NULL);           
    SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
    SendDlgItemMessage(hwnd, BOTON_RECEPTOR, BM_SETCHECK, BST_CHECKED, 0);           
    SetFocus(hctrl);

    hctrl = CreateWindowEx(0, "BUTTON", "Emisor", BS_NOTIFY | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 30, 65,
      70, 25, hwnd, (HMENU)BOTON_EMISOR, hInstance, NULL);         
    SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));


    hctrl = CreateWindowEx(0, "STATIC", "Telefono", SS_SIMPLE | WS_CHILD | WS_VISIBLE, 150, 55, 100, 55, hwnd, (HMENU)LABEL_TELEFONO,
          hInstance, NULL);          
    SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
    SetFocus(hctrl); 

    hctrl = CreateWindowEx(0, "EDIT", "", ES_READONLY | ES_LEFT | WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP | ES_NUMBER , 115, 68,
          80, 20, hwnd, (HMENU)EDIT_TELEFONO, hInstance, NULL); 
    SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
    SetFocus(hctrl);       

    return 1;
}

谢谢

Answer 1

如果您的 GUI 作为标准模式对话框运行，您应该可以免费在控件之间使用 Tab 键和 Alt 键导航。

即:具有 WS_TABSTOP 样式集的控件，您应该能够使用 Tab 键切换到定义的快捷键(例如:标题为“&Do Something”的按钮应该可以使用 Alt+D 访问 - 并且 D 应该可以访问)下划线显示)。

如果您的窗口没有作为标准模式对话框运行，要获得此行为，您的消息循环需要在分派(dispatch)每条消息之前调用 IsDialogMessage。

例如:

MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
    if (!IsDialogMessage(m_hWndYourWindow, &msg))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
}