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OnInitDialog 中调用的方法：

void ChookDlg::add_tab_items()
    {
        tab_item_ptrs.push_back( tab_item_ptr( new CTabSLSensor ) );
        tab_item_ptrs.push_back( tab_item_ptr(new user_dlg) );
        tab_item_ptrs.push_back( tab_item_ptr( new admin_dlg ) );
        for ( auto tab_item_res_id = first_tab_item_res_id, idx = 0U; tab_item_res_id != last_tab_item_res_id + 1; ++tab_item_res_id, ++idx )
        {
            ASSERT(tab_item_ptrs.at(idx)->Create(tab_item_res_id, this)); // calls OnInitDialog
            tab_item_ptrs.at(idx)->ShowWindow(SW_HIDE);

            mapped_tab_items[static_cast< tab_item >(idx)] = 
                tab_item_image_container( 
                                            tab.InsertItem(tab.GetItemCount(), _T("SL Sensor"), tab_item_ptrs.back().get()),
                                            tab_item_ptrs.at(idx)
                                        );

        }
    }

tab 是一个继承 CTabCtrl 的 CMyTabCtrl 类型的对象。 这是插入方法：

LONG CMyTabCtrl::InsertItem(int nItem, LPCTSTR lpszItem, CMyTabCtrlTab *myTabCtrlTab)
{
    UINT mask = TCIF_PARAM;
    LPARAM lParam = reinterpret_cast<LPARAM>(myTabCtrlTab);

    if (NULL != lpszItem) {
        mask |= TCIF_TEXT;
    }
    ASSERT(myTabCtrlTab != NULL);
    LONG retval = CTabCtrl::InsertItem(mask, nItem, lpszItem, 0, lParam);
    if (retval < 0)
        return retval;

    CRect windowRect;
    GetWindowRect(&windowRect);
    AdjustRect(FALSE, &windowRect);
    // The left border is 3 pixel, the bottom border 2 pixel and the right border 1 pixel
    // Adjust to 1 pixel at each side.
    // windowRect.left -= 2;
    // windowRect.bottom += 1;
    GetParent()->ScreenToClient(&windowRect);
    myTabCtrlTab->SetWindowPos(&wndTop, windowRect.left, windowRect.top, windowRect.Width(), windowRect.Height(), SWP_HIDEWINDOW);

    return retval;
}

调试断言失败在 winocc.cpp 中的第 318 行引发：

BOOL CWnd::SetWindowPos(const CWnd* pWndInsertAfter, int x, int y, int cx,
    int cy, UINT nFlags)
{
    ASSERT(::IsWindow(m_hWnd) || (m_pCtrlSite != NULL));

模板设置正确。

这是 OnInitDialog：

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

    // Add "About..." menu item to system menu.

    // IDM_ABOUTBOX must be in the system command range.
    ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
    ASSERT(IDM_ABOUTBOX < 0xF000);
    ASSERT((IDM_RECONNECT & 0xFFF0) == IDM_RECONNECT);
    ASSERT(IDM_RECONNECT < 0xF000);
    CMenu* pSysMenu = GetSystemMenu(FALSE);
    if (pSysMenu != NULL)
    {
        BOOL bNameValid;
        CString strAboutMenu;
        bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
        ASSERT(bNameValid);
        CString strReconnectMenu;
        bNameValid = strReconnectMenu.LoadString(IDS_RECONNECT);
        ASSERT(bNameValid);
        if (!strAboutMenu.IsEmpty())
        {
            pSysMenu->AppendMenu(MF_SEPARATOR);
            pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
            pSysMenu->AppendMenu(MF_SEPARATOR);
            pSysMenu->AppendMenu(MF_STRING, IDM_RECONNECT, strReconnectMenu);
        }
    }

    // Set the icon for this dialog.  The framework does this automatically
    //  when the application's main window is not a dialog
    SetIcon(m_hIcon, TRUE);         // Set big icon
    SetIcon(m_hIcon, FALSE);        // Set small icon

    // initialize tab item pointers container
    add_tab_items();
    tab.ChangeTab( static_cast< int >( tab_item::sensor ) );

    return TRUE;  // return TRUE  unless you set the focus to a control
}

标签声明：

private:
CMyTabCtrl tab;
4

2 回答 2

0

在代码中

tab.InsertItem(tab.GetItemCount(), _T("SL Sensor"), tab_item_ptrs.back().get())

采用未初始化的对话框指针。它应该是形式

tab.InsertItem(tab.GetItemCount(), _T("SL Sensor"), tab_item_ptrs.at(idx).get())
于 2013-06-19T08:44:10.180 回答
0

不确定这一点，因为 MFC 是很久以前的事了，但直觉告诉我下面的行是可疑的 GetParent()->ScreenToClient(&windowRect);

应该调用 GetClientRect 而不是 ScreenToClient。

于 2013-06-18T23:14:11.863 回答