public static string StringFromConnectionType(ChipConnection connectionType)
{
switch (connectionType)
{
case ChipConnection.contact: return(scard_strings.SMARTCARD_PROTOCOL_T0_OR_T1);
case ChipConnection.contactless: return(scard_strings.SMARTCARD_PROTOCOL_CONTACTLESS);
}
throw new Exception("expected one of contact or contactless");
}
/// <summary>
/// wrapper for the win32 ::SCardConnect() function.
/// see http://msdn.microsoft.com/en-us/library/windows/desktop/aa379473(v=vs.85).aspx
/// </summary>
/// <param name="connectionType">
/// one of SCard.contact, SCard.contactless
/// </param>
/// <param name="protocol">
/// populated with one of these values:
/// SCARD_PROTOCOL_UNDEFINED = 0,
/// SCARD_PROTOCOL_T0 = 0x1,
/// SCARD_PROTOCOL_T1 = 0x2,
/// SCARD_PROTOCOL_RAW = 0x10000,
/// SCARD_PROTOCOL_Tx = 0x3,
/// SCARD_PROTOCOL_DEFAULT = 0x80000000,
/// SCARD_PROTOCOL_OPTIMAL = 0
/// </param>
/// <returns>a smartcard error code as defined in WinError.H; SCARD_S_SUCCESS if no error.</returns>
public long SCardConnect(ChipConnection connectionType, ref uint protocol)
{
long scardResult = (long)scard_error.SCARD_F_UNKNOWN_ERROR;
try {
var connectionTypeString = StringFromConnectionType(connectionType);
var xmlFormat = strings.SMARTCARD_CONNECT_XML;
var input = string.Format(xmlFormat, connectionTypeString);
var resultXml = _bidiSpl.SetPrinterData(strings.SMARTCARD_CONNECT, input);
var smartcardResponseValues = Util.ParseSmartcardResponseXML(resultXml);
protocol = (uint)ProtocolFromString(smartcardResponseValues._protocol);
scardResult = ErrorFromString(smartcardResponseValues._status);
}
catch (scardException e) {
Console.WriteLine("{0}: ; hresult: 0x{0:x}", e.Message, e.hresult);
}
return(scardResult);
}