Change color of a sample edit read only

HBRUSH CEstatisDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

	int id = pWnd->GetDlgCtrlID();

	if (id == IDC_EDIT4)
	{
		//pDC->SetTextColor(RGB(0, 0, 0));
		pDC->SetBkColor(RGB(255, 0, 0));

		if (!m_whitebrush)
			m_whitebrush = CreateSolidBrush(RGB(255, 0,0));

		hbr = m_whitebrush;
	}

	return hbr;
}