Hi all,
    I am getting the following error code of Scard
Transmit.
    6F9h whenever I am trying to do a Read Binary
    (APDU = 00 b0 84 0 5 ) after a Write Binary
command
    on my card. Can anyone explain what it means?
    Interestingly, I don't get the error message, if I
give the Read Binary command before I
    Also sometimes I am getting the following status
code, 0x8010002Fh, whenever the card returns some
error status bytes( but not always).
    Is there a function, which prints the error
message, given the status code.
    I am attaching part of the program code, that I am
using (taken from gemplus code).

thanks a lot,
regards,
ravi.

/*------------------------------------------------------------------------------
      SCARDTRANSMIT
------------------------------------------------------------------------------*/
      case 1:
         printf("S C A R D T R A N S M I T\n");
/*------------------------------------------------------------------------------
         Read CLA, INS, P1, P2, Lin
------------------------------------------------------------------------------*/
         dwLengthIn = 0;
         printf("\tCLA:");scanf("%x",&nData);
szDataIn[dwLengthIn++] = (BYTE) nData;
         printf("\tINS:");scanf("%x",&nData);
szDataIn[dwLengthIn++] = (BYTE) nData;
         printf("\tP1 :");scanf("%x",&nData);
szDataIn[dwLengthIn++] = (BYTE) nData;
         printf("\tP2 :");scanf("%x",&nData);
szDataIn[dwLengthIn++] = (BYTE) nData;
         nLenIn = 0;
         printf("\tLin:");scanf("%x",&nData);
/*------------------------------------------------------------------------------
         Read Data In
------------------------------------------------------------------------------*/
         if (
             (
               (dwProtocol == SCARD_PROTOCOL_T0) &&
               (nData > 0)
             )
             ||
             (dwProtocol == SCARD_PROTOCOL_T1)
            )
         {
            szDataIn[dwLengthIn++] = (BYTE) nData;
            nLenIn = nData;
         }
         if (nLenIn != 0)
         {
            for (dwIndex=0;dwIndex < (DWORD)
nLenIn;dwIndex++)
            {
               printf("\t\tData[%d]:",dwIndex );
               scanf("%x",&nData);
               szDataIn[dwLengthIn++] = (BYTE) nData;
            }
         }
/*------------------------------------------------------------------------------
         Read Lex
------------------------------------------------------------------------------*/
         if (
             (
               (dwProtocol == SCARD_PROTOCOL_T0) &&
               (nLenIn == 0)
             )
             ||
             (dwProtocol == SCARD_PROTOCOL_T1)
            )
         {
            printf("\tLex:");scanf("%x",&nData);
szDataIn[dwLengthIn++]=nData;
            nLenOut = nData;
         }
/*------------------------------------------------------------------------------
         If Lin=Lex=0, the P3 byte is not send.
------------------------------------------------------------------------------*/
         if ((nLenIn == 0) && (nLenOut == 0))
         {
            dwLengthIn = 4;
         }
         else
         {
            if (nLenOut == 0)
            {
               dwLengthIn--;
            }
         }
         dwLengthOut = 200;
         ScardIoRequest.dwProtocol = dwProtocol;
         ScardIoRequest.cbPciLength =
sizeof(ScardIoRequest);
         lRet = SCardTransmit(
                           hCard,
                                                         &ScardIoRequest,
                                                         szDataIn,
                                                         dwLengthIn,
                                                         NULL,
                                                         szDataOut,
                                                         &dwLengthOut
                           );
         bCommand = TRUE;
/*
   SOME OTHER CODE HERE */

      if (bCommand)
      {
         printf("Status: %Xh\n",lRet);
              if ((lRet == SCARD_S_SUCCESS) && (dwLengthOut
>0))
              {
            printf("Card response(%d):
",dwLengthOut);
            for
(dwIndex=0;dwIndex<dwLengthOut;dwIndex++)
            {
               printf("%02X,",szDataOut[dwIndex]);
            }
         }
         printf("\n");
      }

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