IMPLEMENT_DYNAMIC(InputDialog, CDialogEx)



InputDialog::InputDialog(CWnd* pParent /*=NULL*/)
    : CDialogEx(InputDialog::IDD, pParent)
    , m_edit(_T(""))
{
}

InputDialog::~InputDialog()
{
}

void InputDialog::DoDataExchange(CDataExchange* pDX)
{


    CDialogEx::DoDataExchange(pDX);

    DDX_Text(pDX, IDC_EDIT_INPUT, m_edit);
    DDV_MaxChars(pDX, m_edit, 5);
}


BEGIN_MESSAGE_MAP(InputDialog, CDialogEx)
    ON_BN_CLICKED(IDOK, &InputDialog::OnBnClickedOk)
END_MESSAGE_MAP()

void AFXAPI DDV_MinChars(CDataExchange* pDX, CString const& value, int nChars)
{
    // ...
    if (pDX->m_bSaveAndValidate && value.GetLength() < nChars)
    {
        // ...