public bool Disconnect()
{
int result = WinSCard.SCardDisconnect(card, WinSCard.Disposition.SCARD_UNPOWER_CARD);
if (result != WinSCard.SCARD_S_SUCCESS)
{
throw new SmartCardException(result);
}
else
{
connected = false;
atr = null;
}
return((result == WinSCard.SCARD_S_SUCCESS) ? true : false);
}
