SetWindowPos( CB.Handle, 0, 0, 0, CB.Width, H * (IC + 2) + 2,
                SWP_NOMOVE + SWP_NOZORDER + SWP_NOACTIVATE + SWP_NOREDRAW +
                SWP_HIDEWINDOW);
                
  {SetWindowPos( CB.Handle, 0, 0, 0, CB.Width, CB.Height * (IC + 1) + 2,
                SWP_NOMOVE + SWP_NOZORDER + SWP_NOACTIVATE + SWP_NOREDRAW +
                SWP_HIDEWINDOW);}
                
  SetWindowPos( CB.Handle, 0, 0, 0, 0, 0, SWP_NOMOVE + SWP_NOSIZE
                + SWP_NOZORDER + SWP_NOACTIVATE
                + SWP_NOREDRAW + SWP_SHOWWINDOW);

  MoveWindow(CB.Handle, CB.Left, CB.Top, CB.Width, H * (IC + 2) + 2, false);