C / C++ / MFC

LRESULT CMyDlg::OnCtlColorStatic
  (WPARAM wParam, LPARAM lParam)
{
  // Override this method to impart a normal background to the edit
  // control
  HDC hDC = (HDC)wParam;
  HWND hwndCtl = (HWND) lParam;
  UINT uCtrlId = ::GetDlgCtrlID (hwndCtl);
  if (uCtrlId == IDC_MY_EDIT) {
      CDC *pDC = CDC::FromHandle (hDC);
      pDC->SetBkColor (RGB (255, 255, 255));
      return (LRESULT) (HBRUSH) m_brushBkg.GetSafeHandle();
  }
  return Default();
}

LRESULT MyDlg::OnCtlColorStatic(WPARAM wParam, LPARAM lParam)
{
    // Override this method to impart a normal background to the edit
    // control
    HDC hDC = (HDC)wParam;
    HWND hwndCtl = (HWND) lParam;
    UINT uCtrlId = ::GetDlgCtrlID (hwndCtl);

    // Delete the old brush
    m_brushBkg.DeleteObject();
    // Create a new brush in the specified color (white)
    m_brushBkg.CreateSolidBrush(RGB (255, 255, 255));

    if (uCtrlId == IDC_LABEL_DISPLAY) {
    CDC *pDC = CDC::FromHandle (hDC);
    pDC->SetBkColor (RGB (255, 255, 255));
        return (LRESULT) (HBRUSH) m_brushBkg.GetSafeHandle();
    }
    return Default();
}