public bool ConnectReader()
{
// Connect to selected reader using hContext handle and obtain hCard handle
if (connActive)
{
retCode = ModWinsCard.SCardDisconnect(hCard, ModWinsCard.SCARD_UNPOWER_CARD);
}
// Shared Connection
retCode = ModWinsCard.SCardConnect(hContext, cbReaderText, ModWinsCard.SCARD_SHARE_EXCLUSIVE, ModWinsCard.SCARD_PROTOCOL_T1, ref hCard, ref Protocol);
if (retCode == ModWinsCard.SCARD_S_SUCCESS)
{
// displayOut(0,0,"Successful connection to " + cbReader.Text);
connActive = true;
return(true);
}
else
{
// displayOut(0, 0, ModWinsCard.GetScardErrMsg(retCode));
connActive = false;
return(false);
}
}
public bool InitReader()
{
string ReaderList = "" + Convert.ToChar(0);
int indx;
int pcchReaders = 0;
string rName = "";
// 1. Establish Context
retCode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
// displayOut(1, retCode, "");
return(false);
}
// 2. List PC/SC card readers installed in the system
retCode = ModWinsCard.SCardListReaders(this.hContext, null, null, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
// displayOut(1, retCode, "");
return(false);
}
byte[] ReadersList = new byte[pcchReaders];
// Fill reader list
retCode = ModWinsCard.SCardListReaders(this.hContext, null, ReadersList, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
// displayOut(0, 0, "SCardListReaders Error: " + ModWinsCard.GetScardErrMsg(retCode));
return(false);
}
else
{
// displayOut(0, 0, " ");
}
rName = "";
indx = 0;
// Convert reader buffer to string
while (ReadersList[indx] != 0)
{
while (ReadersList[indx] != 0)
{
rName = rName + (char)ReadersList[indx];
indx = indx + 1;
}
// Add reader name to list
if (rName == cbReaderText)
{
return(true);
}
}
return(false);
}
private int SendAPDUandDisplay(int reqType)
{
int indx;
string tmpStr;
pioSendRequest.dwProtocol = Aprotocol;
pioSendRequest.cbPciLength = 8;
// Display Apdu In
tmpStr = "";
for (indx = 0; indx <= SendLen - 1; indx++)
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", SendBuff[indx]);
}
// displayOut(2, 0, tmpStr);
retCode = ModWinsCard.SCardTransmit(hCard, ref pioSendRequest, SendBuff, SendLen, ref pioSendRequest, RecvBuff, ref RecvLen);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
// displayOut(1, retCode, "");
return(retCode);
}
else
{
tmpStr = "";
switch (reqType)
{
case 0:
{
for (indx = (RecvLen - 2); indx <= (RecvLen - 1); indx++)
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", RecvBuff[indx]);
}
if ((tmpStr).Trim() != "90 00")
{
// displayOut(4, 0, "Return bytes are not acceptable.");
}
break;
}
case 1:
{
for (indx = (RecvLen - 2); indx <= (RecvLen - 1); indx++)
{
tmpStr = tmpStr + string.Format("{0:X2}", RecvBuff[indx]);
}
if (tmpStr.Trim() != "90 00")
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", RecvBuff[indx]);
}
else
{
tmpStr = "ATR : ";
for (indx = 0; indx <= (RecvLen - 3); indx++)
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", RecvBuff[indx]);
}
}
break;
}
case 2:
{
for (indx = 0; indx <= (RecvLen - 1); indx++)
{
tmpStr = tmpStr + " " + string.Format("{0:X2}", RecvBuff[indx]);
}
break;
}
}
// displayOut(3, 0, tmpStr.Trim() + "\r\n");
}
return(retCode);
}
