public int Transmit(byte[] sendBuffer, byte[] receiveBuffer)
{
SmartCardIORequest sendPci = SmartCardIORequest.T1;
SmartCardIORequest recvPci = SmartCardIORequest.T1;
uint len = (uint)receiveBuffer.Length;
IntPtr ptr = Marshal.AllocHGlobal((int)len);
try {
int ret = SCardTransmit(card, ref sendPci, sendBuffer, (uint)sendBuffer.Length, ref recvPci, ptr, ref len);
if (ret != 0)
{
throw SmartCardContext.ToException(ret);
}
//Console.Write("Transmit received {0} bytes: ", len);
Marshal.Copy(ptr, receiveBuffer, 0, (int)len);
//Console.WriteLine(BitConverter.ToString(receiveBuffer, 0, (int)len));
return((int)len);
} finally {
Marshal.FreeHGlobal(ptr);
}
}
private static extern int SCardTransmit(IntPtr card, [MarshalAs(UnmanagedType.Struct)] ref SmartCardIORequest sendPci, [MarshalAs(UnmanagedType.LPArray)] byte[] sendBuffer, uint sendLen, [MarshalAs(UnmanagedType.Struct)] ref SmartCardIORequest recvPci, IntPtr recvBuffer, ref uint recvLen);