docs: public void setupControlDesc()
      {
          if (m_screenParent == null)
              return;
          String strDisplay = m_converterField.getFieldDesc();
          if ((strDisplay != null) && (strDisplay.length() > 0))
          {
              ScreenLocation descLocation = m_screenParent.getNextLocation(ScreenConstants.FIELD_DESC, ScreenConstants.DONT_SET_ANCHOR);
              new SStaticString(descLocation, m_screenParent, strDisplay);
          }
      }