/// <summary>
/// Connect the application to the PCSC driver
/// </summary>
/// <param name="sReader">The reader name</param>
/// <param name="nAccessMode">Access mode (Direct, Exclusive or Shared).</param>
/// <param name="nPreferredProtocols">Protocols the driver should use to communicate with the reader.</param>
/// <returns>True if successfully connected, False if card removed.</returns>
public bool Connect(string sReader, SCardAccessMode nAccessMode, SCardProtocolIdentifiers nPreferredProtocols)
{
if (this.m_fDisposed)
{
throw new ObjectDisposedException(base.GetType().FullName);
}
if (((this.m_hCard != IntPtr.Zero) || (this.Context == IntPtr.Zero)) || this.m_fIsConnected)
{
throw new InvalidOperationException();
}
// Share mode and protocols from caller.
uint num1 = (uint)nAccessMode;
uint num2 = (uint)nPreferredProtocols;
// Establish a connection between application and card docked in the reader.
// (Gets the handle to the card and the active protocol of the connection)
uint num3 = WinSCard.SCardConnect(this.Context, sReader, num1, num2, out this.m_hCard, out this.m_dwActiveProtocol);
// Check error code - either successfully connected or the card was removed are ok.
switch (num3)
{
case (uint)SCardErrorCodes.SCARD_S_SUCCESS:
//case 0:
this.m_fIsConnected = true;
return(true);
case (uint)SCardErrorCodes.SCARD_W_REMOVED_CARD:
//case 0x80100069:
return(false);
}
// Any other error codes are raised.
//SCardException.RaiseWin32ResponseCode(num3);
throw new InvalidProgramException();
}
internal Card setProtocol(SCardProtocolIdentifiers protocol)
{
this.protocol = protocol;
return(this);
}
public SCardReaderState Status(out byte[] byteATR, out SCardReaderState eState, out SCardProtocolIdentifiers eProtocol)
{
if (this.m_fDisposed)
{
throw new ObjectDisposedException(base.GetType().FullName);
}
if (this.m_hCard == IntPtr.Zero)
{
throw new InvalidOperationException();
}
StringBuilder builder1 = new StringBuilder(0x100);
uint num3 = (uint)builder1.Capacity;
byte[] atr = new byte[0x20];
uint num4 = (uint)atr.Length;
uint dwState;
uint dwProtocol;
uint dwATRLength = (uint)atr.Length;
uint num5 = WinSCard.SCardStatus(this.m_hCard, builder1, ref num3 /*builder1.Capacity*/, out dwState /*pdwState*/, out dwProtocol /*pdwProtocol*/, atr /*pbATR*/, ref dwATRLength /*pbcATRLen*/);
if (num5 != 0)
{
//SmartCardException.RaiseWin32ResponseCode(num5);
}
eState = (SCardReaderState)dwState;
eProtocol = (SCardProtocolIdentifiers)dwProtocol;
if (dwATRLength > 0)
{
// copy only the valid portion of the ATR to the return buffer.
byteATR = new byte[dwATRLength];
for (int i = 0; i < dwATRLength; i++)
{
byteATR[i] = atr[i];
}
}
else
{
byteATR = new byte[1];
byteATR[0] = 0;// return an invalid state.
}
return((SCardReaderState)dwState);
}
