MFC console printing, pop-up dialog box

void CMVIDCodeReaderDemoDlg::OnBnClickedButton3()
{
    
    // TODO:  Add control notification handler code here 
    //  Console printing 
    OutputDebugString(L"sdfsfsd111\r\n");  
    //  Pop-up dialog box 
    if (MessageBox(_T(" Are you sure to quit? "), _T(" Tips "), MB_YESNO | MB_ICONWARNING) == IDNO)
        return;
    //  Pop-up dialog box 
    CString strMsg;
    m_ctrlFrameRateEdit.GetWindowText(strMsg); 
    strMsg.Format(_T("111111111111"));
    MessageBox(strMsg);  
}