mfc对话框禁止关闭

禁止用alt+f4\esc\点击关闭按钮关闭对话框

void UpdateChoice::OnSysCommand(UINT nID, LPARAM lParam)
{
    // TODO:  在此添加消息处理程序代码和/或调用默认值

    if (nID == SC_CLOSE)
    {
        LOG_S("ScClose is Pressed");
    }
    else
    {
        CDialogEx::OnSysCommand(nID, lParam);
    }
}

BOOL UpdateChoice::PreTranslateMessage(MSG* pMsg)
{
    // TODO:  在此添加专用代码和/或调用基类

    if (pMsg->message == WM_KEYDOWN)
    {
        if (pMsg->wParam == VK_ESCAPE)
        {
            LOG_S("EscKey is Prevented");
            return TRUE;
        }

        if (pMsg->wParam == VK_RETURN)
        {
            LOG_S("EntKey is Pressed");
            //return TRUE;
        }
    }

    return CDialogEx::PreTranslateMessage(pMsg);
}