private bool CheckCard()
{
bool functionReturnValue = false;
//Variable declaration
int ReaderLen = 0;
long tmpWord;
tmpWord = 32;
ATRLen = Convert.ToInt32(tmpWord);
retCode = ModWinsCard.SCardStatus(hCard, cbReader.Text, ref ReaderLen, ref dwState, ref dwActProtocol, ref ATRVal[0], ref ATRLen);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
//Call DisplayOut(1, retCode, "")
functionReturnValue = false;
return(functionReturnValue);
}
else
{
InterpretATR();
functionReturnValue = true;
}
return(functionReturnValue);
}
private void bGetAtr_Click(object sender, EventArgs e)
{
string tmpStr;
int indx;
displayOut(0, 0, "Invoke Card Status");
ATRLen = 33;
retCode = ModWinsCard.SCardStatus(hCard, cbReader.Text, ref ReaderLen, ref dwState, ref dwActProtocol, ref ATRVal[0], ref ATRLen);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retCode, "");
System.Environment.Exit(0);
}
else
{
tmpStr = "ATR Length : " + ATRLen.ToString();
displayOut(3, 0, tmpStr);
tmpStr = "ATR Value : ";
for (indx = 0; indx <= ATRLen - 1; indx++)
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", ATRVal[indx]);
}
displayOut(3, 0, tmpStr);
}
tmpStr = "Active Protocol: ";
switch (dwActProtocol)
{
case 1:
tmpStr = tmpStr + "T=0";
break;
case 2:
tmpStr = tmpStr + "T=1";
break;
default:
tmpStr = "No protocol is defined.";
break;
}
displayOut(3, 1, tmpStr);
InterpretATR();
}
private void _pollingTimer_Tick(object sender, EventArgs e)
{
int readerLen = 0,
dwState = 0,
dwProtocol = 0;
_receivedBuffer = new byte[32];
var atrLen = _receivedBuffer.Length;
Connect();
_returnCode = ModWinsCard.SCardStatus(_hCard, _name, ref readerLen, ref dwState, ref dwProtocol, ref _receivedBuffer[0], ref atrLen);
if (_returnCode != ModWinsCard.SCARD_S_SUCCESS && ShouldChangeState(ReaderCardState.NO_CARD_DETECTED))
{
_smartCard = null;
OnReaderCardStateChanged(new ReaderCardStateChangedEventArgs(ReaderCardState.NO_CARD_DETECTED));
}
else
{
try
{
var card = new SmartCard(atrLen, _receivedBuffer);
if (ShouldChangeState(ReaderCardState.CARD_PRESENT) || card.Type != _smartCard.Type)
{
if (_smartCard == null)
{
_smartCard = card;
}
else
{
_smartCard = _smartCard.Type == card.Type ? _smartCard : card;
}
OnReaderCardStateChanged(new ReaderCardStateChangedEventArgs(ReaderCardState.CARD_PRESENT));
}
}
catch (Exception)
{
_smartCard = null;
OnReaderCardStateChanged(new ReaderCardStateChangedEventArgs(ReaderCardState.NO_CARD_DETECTED));
}
}
}