public string ReadRfidInformation()
        {
            string apiVersion="";
            string firmwareVersion="";
            string cType="";
            try
            {

                RFIDAPI rfidApi = new RFIDAPI();
                //rfidApi.RFID_OpenReader(0x05);
                //rfidApi.RFID_OpenCard(out readedData, out cType);

                rfidApi.RFID_GetAPIVersionString(out apiVersion);
                rfidApi.RFID_FWVersion(out firmwareVersion);

                //rfidApi.RFID_CloseCard();
                //rfidApi.RFID_CloseReader(0x05);

                return apiVersion+" ; "+firmwareVersion;

            }catch(Exception ex)
            {
                return ex.Message;
            }
        }