void x_CardPresented(string reader, byte[] cardData)
{
try
{
var hex = SCARD.ToHex(cardData, "");
var bin = hex2bin(hex.Substring(hex.Length - 8));
bin = bin.Substring(bin.Length - 26);
var f = Convert.ToInt32(bin.Substring(1, 8), 2);
var c = Convert.ToInt32(bin.Substring(9, 16), 2);
var raw = new BitArray(cardData);
//var x = raw.Length - 25;
//BitArray fac = new BitArray(8);
//BitArray car = new BitArray(16);
//for (int i = 0; i < 8; i++) { fac[i] = raw[x + i]; }
//for (int f = 0; f < 16; f++) { car[f] = raw[x + 8 + f]; }
//var facility = ToNumeral(fac);
//var cardNum = ToNumeral(car);
}
catch (Exception ex)
{
}
}
private List <string> GetReaderList(IntPtr hContext, string sGroup)
{
uint nStringLength = 0;
uint result = SCARD.ListReaders(hContext, sGroup, null, ref nStringLength);
if (result != SCARD.S_SUCCESS)
{
return(null);
}
string sReaders = new string(' ', (int)nStringLength);
result = SCARD.ListReaders(hContext, sGroup, sReaders, ref nStringLength);
if (result != SCARD.S_SUCCESS)
{
return(null);
}
List <string> list = new List <string>(sReaders.Split('\0'));
for (int i = 0; i < list.Count;)
{
if (list[i].Trim().Length > 0)
{
i++;
}
else
{
list.RemoveAt(i);
}
}
return(list);
}
private void Run()
{
IntPtr hContext = IntPtr.Zero;
try
{
uint result = SCARD.EstablishContext(SCARD.SCOPE_SYSTEM, IntPtr.Zero, IntPtr.Zero, ref hContext);
if (result != SCARD.S_SUCCESS)
{
thread = null;
return;
}
uint notification_state = SCARD.STATE_UNAWARE;
while (!bStopThread) // loop 1 - build list, then iterate
{
SCARD.ReaderState[] states = new SCARD.ReaderState[ReaderCount + 1];
states[0] = new SCARD.ReaderState(@"\\?PNP?\NOTIFICATION");
states[0].dwCurrentState = notification_state;
int iState = 0;
if (readerNames != null)
{
foreach (string s in readerNames)
{
iState++;
states[iState] = new SCARD.ReaderState(s);
states[iState].dwCurrentState = SCARD.STATE_UNAWARE;
}
}
while (!bStopThread) // loop 2 - iterate over list built above
{
result = SCARD.GetStatusChange(hContext, 250, states, (uint)states.Length);
if (result == SCARD.E_TIMEOUT)
{
continue;
}
if (result != SCARD.S_SUCCESS)
{
break;
}
bool bReaderListChanged = false;
for (int i = 0; i < states.Length; i++)
{
if ((states[i].dwEventState & SCARD.STATE_CHANGED) != 0)
{
if (i == 0)
{
// reader added or removed
notification_state = states[0].dwEventState;
// we want to replace the member in one step, rather than modifying it...
List <string> tmp = GetReaderList(hContext, SCARD.GROUP_ALL_READERS);
if (tmp == null)
{
readerNames.Clear();
}
else
{
readerNames = tmp;
}
if (ListChanged != null)
{
ListChanged();
}
bReaderListChanged = true;
}
else
{
// card added or removed
states[i].dwCurrentState = states[i].dwEventState;
if ((states[i].dwEventState & SCARD.STATE_PRESENT) != 0)
{
byte[] cardData = new byte[states[i].cbATR];
for (int j = 0; j < cardData.Length; j++)
{
cardData[j] = states[i].rgbATR[j];
}
string thisCard = SCARD.ToHex(cardData, "");
string lastCard;
lastCardFound.TryGetValue(states[i].szReader, out lastCard);
if (thisCard != lastCard)
{
lastCardFound[states[i].szReader] = thisCard;
if (CardPresented != null)
{
CardPresented(states[i].szReader, cardData);
}
}
}
else
{
lastCardFound[states[i].szReader] = "";
}
}
}
}
if (bReaderListChanged)
{
break; // break out of loop 2, and re-build our 'states' list
}
} // end loop 2
} // end loop 1
}
catch (Exception ex)
{
//TODO: error logging
}
finally
{
if (hContext != IntPtr.Zero)
{
SCARD.ReleaseContext(hContext);
}
thread = null;
}
}
