[smartCard]How to use SCardTransmit and UID

[Mevius21]

  int SCARD_PROTOCOL = 0;
  switch (pdwActiveProtocol.value) {
    case SCARD_PROTOCOL_T0:
      SCARD_PROTOCOL = SCARD_PROTOCOL_T0;
      break;
    case SCARD_PROTOCOL_T1:
      SCARD_PROTOCOL = SCARD_PROTOCOL_T1;
      break;
    default:
      print("Unknown protocol");
      break;
  }

  int hCard = phCard.value;
  List<int> data = [0xff, 0xca, 0x00, 0x00, 0x00];
  Uint8List Sendbytes = Uint8List.fromList(data);
  Pointer<Uint8> pbSendBuffer = Sendbytes .allocatePointer();
  Pointer<Uint8> pbRecvBuffer = calloc<Uint8>();
  int cbSendLength = bytes.length;
  Pointer<Uint32> pcbRecvLength =　calloc<Uint32>();

  Pointer<SCARD_IO_REQUEST> pioSendPci = calloc<SCARD_IO_REQUEST>()
    ..ref.cbPciLength = sizeOf<SCARD_IO_REQUEST>()
    ..ref.dwProtocol = SCARD_PROTOCOL;

  ret = SCardTransmit(hCard, pioSendPci, pbSendBuffer, cbSendLength, nullptr,
      pbRecvBuffer, pcbRecvLength);

This was successful, but I cannot get the UID. What is the problem?

I can't proceed because I don't know what I'm doing wrong.

[Mevius21]

I found out that it returns pcbRecvLength:10, but the contents of pbRecvBuffer all came back as zero.

[Mevius21]

Uint8List byte = pbRecvBuffer.asTypedList(pcbRecvLength.value);
1:[0, 0, 0, 0, 0, 0, 0, 0, 224, 159]
2:[0, 0, 0, 0, 0, 0, 0, 0, 204, 107]

Different from the first and second time.

[Mevius21]

Could we have found the problem?
#309

[Mevius21]

I couldn't solve it.
If anyone knows, please let me know.