static extern Result SCardConnect(
IntPtr context,
String szReaderName,
Sharing dwShareMode,
CardProtocol dwPrefProtocol,
out IntPtr hCard,
out CardProtocol ActiveProtocol);
static extern Result SCardStatus(
IntPtr hCard,
byte[] szReaderName,
ref int pcchReaderLen,
ref CardState state,
ref CardProtocol protocol,
byte[] ATR,
ref int ATRLen);
public bool DisconnectCard()
{
try
{
if (_cardHandle != IntPtr.Zero)
{
_result = SCardDisconnect(_cardHandle, Disposition.SCARD_LEAVE_CARD);
}
}
finally
{
_cardHandle = IntPtr.Zero;
_state = CardState.SCARD_ABSENT;
_protocol = CardProtocol.SCARD_PROTOCOL_UNDEFINED;
_atr = new byte[0];
_cardUID = new byte[0];
_response = new byte[0];
}
return(true);
}
static extern Result SCardState(
IntPtr hCard,
ref CardState state,
ref CardProtocol protocol,
ref byte[] ATR,
ref UInt32 ATRLen);
