private void _dcmd(byte[] _name)
{
try
{
// initialize the reader.
SCardReader _reader = new SCardReader(_context);
_context.Establish(SCardScope.System);
// connect to the reader, protocol not limited.
SCardError _error = _reader.Connect(_port,
SCardShareMode.Direct,
SCardProtocol.Unset);
if (CheckError(_error))
{
throw new PCSCException(_error);
}
byte[] _pbRecvBuffer = new byte[256];
// use the hexadecimal code to control the LED.
_error = _reader.Control(IOCTL_SCL2000_CTL, _name, ref _pbRecvBuffer);
if (CheckError(_error))
{
throw new PCSCException(_error);
}
string _result = ToHexString(_pbRecvBuffer);
// disconnect the reader.
_reader.Disconnect(SCardReaderDisposition.Leave);
}
catch (PCSCException ex)
{
Console.WriteLine(ex.Message + " (" + ex.SCardError.ToString() + ") ");
}
catch (InvalidOperationException ex)
{
Console.WriteLine(ex.Message);
}
}
public bool ReadVersionInformation()
{
bool Result = false;
Version = "";
byte[] capdu = new byte[] { 0xE0, 0x00, 0x00, 0x18, 0x00 };
byte[] rapdu = new byte[128];
try
{
SCardError ret = reader.Connect(readers[indexReader], SCardShareMode.Direct, SCardProtocol.Unset);
Result = (ret == SCardError.Success);
if (Result)
{
ret = reader.Control(SCARD_CTL_CODE(3500), capdu, ref rapdu);
Result = (ret == SCardError.Success) &&
(rapdu.Length >= 6) && (rapdu[0] == 0xE1) && (rapdu[1] == 0x00) && (rapdu[2] == 0x00) && (rapdu[3] == 0x00);
if (Result)
{
Version = System.Text.ASCIIEncoding.ASCII.GetString(rapdu, 5, rapdu[4]);
}
reader.Disconnect(SCardReaderDisposition.Leave);
}
}
catch (Exception E)
{
Result = false;
}
return(Result);
}