Hiding a window

  

case WM_PAINT:

  CChildWnd* pDialog;
  pDialog = GetChildFromID(IDD_DIALOG2);

  if(pDialog != NULL)
  {
    HWND hwnd = pDialog->m_hWnd;
    HWND control = GetDlgItem(hwnd, IDC_STATICLABEL);

    if(control != NULL)
    {
      if(p_hWnd == control)
      {
       // This never happend.

       return 0; // return zero (do not paint)

     }
  }
 }

 break;