docs: public void init(ScreenLocation itsLocation, BasePanel parentScreen, Converter fieldConverter, int iDisplayFieldDesc, String strValue, String strDesc, String strImage, String strCommand, String strToolTip)
      {
          if (DBConstants.BLANK.equals(strDesc))
              strDesc = null;     // Since resources return Blank instead of null.
          m_strButtonDesc = strDesc;
          m_strCommand = strCommand;
          super.init(itsLocation, parentScreen, fieldConverter, iDisplayFieldDesc, strValue, null, strImage, null, strToolTip);
  
          this.setRequestFocusEnabled(false);     // By default, make user click with mouse
      }