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Scardlocatecards:smart Card Api

hi can anyone help me regarding the smart card API SCardLocateCardsW
here is the code i am sending which i have written
[DllImport("winscard.dll", SetLastError = true)]
internal static extern int SCardLocateCardsW(UInt32 hContext, [MarshalAs(UnmanagedType.LPTStr)] string mszCards, [In, Out] SCard_ReaderState[] rgReaderStates, int cReaders);
int nbReaders;
SCard_ReaderState[] readerState = new SCard_ReaderState[1];
// UInt32 eventState = readerState[0].m_dwEventState;
readerState[0].m_dwCurrentState = (UInt32)CARD_STATE.UNAWARE;
readerState[0].m_szReader = (string)reader;
nbReaders = readerState.Length;
string card1 = "Axalto Cryptoflex .NET";

//string[] card = { "Infineon SICRYPT CardModule Card", "Axalto Cryptoflex .NET" };
//card[0]= "Infineon SICRYPT CardModule Card";
//card[1]="Axalto Cryptoflex .NET";
//string card = "";
int nErrCode = SCardLocateCardsW(m_hContext,card1,readerState, nbReaders);

if (nErrCode != 0)
{
string msg = "Failed SCardLocateCardsA error: " + nErrCode;

throw new Exception(msg);
}
the code is throwing an error
i am not knowing wht to pass in the mszcards
can anyone help me
i need this
thanks in advance
Dec 26 '07 #1
0 1510

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