code: public void init(Converter converter, Record recordTarget, int iKeyArea)
      {
          super.init(converter, Constants.BLANK, true);
  
          m_iKeyArea = iKeyArea;
          m_recordTarget = recordTarget;
          m_objTarget = Integer.toString(iKeyArea);
          
          m_strAltDesc = "Key " + m_objTarget;    // Default
          if (m_recordTarget != null)
          {
              BaseField mainField = m_recordTarget.getTable().getCurrentTable().getRecord().getKeyArea(m_iKeyArea).getField(DBConstants.MAIN_KEY_FIELD);
              m_strAltDesc = mainField.getFieldDesc();
          }
      }
docs: Init this converter.