Hi,

You are getting an error in ReadData() beacause you
don't reserve enough memory space for the response:

in ReadData, the 5th line of the function should be:

unsigned long dwRecvLength = size + 2;

In fact there is enouth space (300 bytes) but you must
inform PCSC that this space is available for receiving
data with the paramenter dwRecvLength.

Use SCARD_PROTOCOL_ANY with memory cards. If you use
SCARD_PROTOCOL_RAW, PCSC will send the data bytes to
IFDHControl() function (wich is for control of
terminal, not for communicating with the smartcard)
and you get 6e 00.

Hope it helps,
Carlos.

--- Andreas Trink <atrinkutanet.at> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi!
>
> First info: pscs-lite-1.0.0B, towitoko-2.0.4
>
> I cannot read a memorycard, i always get the message
> "Transaction failed"
> after calling SCardTransmit.
> Writing to the memorycard goes OK!
>

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