[mk456]

Here I have solution of this problem:

Code:

The EnumChildProc() function does this:
{
   int id = ::GetDlgCtrlID(hWnd);
   switch(id)
   {
      case LOOK_IN_COMBO : // Combo box on top of the dialog

         ::EnableWindow(hWnd, FALSE);
         break;
   }

   return TRUE;
}

The main reason we have this hook is that we cannot subclass the controls on the dialog straight away, since some of the controls, such as the list view control and toolbar do not even exist in the common dialog template, which is present in the VC++ include directory.
Try this I hope you get good result!