private void bInit_Click()
{
string ReaderList = "" + Convert.ToChar(0);
int indx;
int pcchReaders = 0;
string rName = "";
//Establish Context
retCode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retCode, "");
return;
}
// 2. List PC/SC card readers installed in the system
retCode = ModWinsCard.SCardListReaders(hContext, null, null, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retCode, "");
return;
}
byte[] ReadersList = new byte[pcchReaders];
// Fill reader list
retCode = ModWinsCard.SCardListReaders(hContext, null, ReadersList, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
mMsg.AppendText("SCardListReaders Error: " + ModWinsCard.GetScardErrMsg(retCode));
return;
}
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
cbReader.Items.Add(rName);
rName = "";
indx = indx + 1;
}
if (cbReader.Items.Count > 0)
{
cbReader.SelectedIndex = 0;
}
}
private void btnInit_Click(object sender, EventArgs e)
{
int pcchReaders = 0;
retCode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
WriteLog(1, retCode, "");
return;
}
retCode = ModWinsCard.SCardListReaders(this.hContext, null, null, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
WriteLog(1, retCode, "");
return;
}
byte[] ReadersList = new byte[pcchReaders];
//Fill reader list
retCode = ModWinsCard.SCardListReaders(this.hContext, null, ReadersList, ref pcchReaders);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
txtMessage.AppendText("SCardListReaders Error: " + ModWinsCard.GetScardErrMsg(retCode));
return;
}
else
{
WriteLog(0, 0, " ");
}
//Convert reader buffer to string
int idx = 0;
string rName = "";
while (ReadersList[idx] != 0)
{
while (ReadersList[idx] != 0)
{
rName = rName + (char)ReadersList[idx];
idx = idx + 1;
}
//Add reader name to list
ddlReaderList.Items.Add(rName);
rName = "";
idx = idx + 1;
}
if (ddlReaderList.Items.Count > 0)
{
ddlReaderList.SelectedIndex = 0;
}
}
private static void InitialiseSmartCardReader()
{
Array.Clear(SendBuff, 0, 262);
Array.Clear(RecvBuff, 0, 262);
//Establishes the context
retCode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
throw new Exception(retCode.ToString());
}
//Verify how many bytes does the reader name has
retCode = ModWinsCard.SCardListReaders(hContext, null, null, ref Readercount);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
throw new Exception(retCode.ToString());
}
//Creates the byte array to receive the name
ReaderListBuff = new byte[Readercount];
//Gets the readers name
retCode = ModWinsCard.SCardListReaders(hContext, ReaderGroupBuff, ReaderListBuff, ref Readercount);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
throw new Exception(retCode.ToString());
}
//Decodify the readers name
sCard = System.Text.Encoding.ASCII.GetString(ReaderListBuff);
//Connects to the reader
retCode = ModWinsCard.SCardConnect(hContext, sCard, ModWinsCard.SCARD_SHARE_SHARED, ModWinsCard.SCARD_PROTOCOL_T0, ref hCard, ref Protocol);
if (retCode != ModWinsCard.SCARD_S_SUCCESS)
{
throw new Exception(retCode.ToString());
}
}
private void btnReaderPort_Click(object sender, System.EventArgs e)
{
byte[] returnData = null; // Will hold the reader names after the call to SCardListReaders
int readerCount = 0; // Total length of the reader names
string readerNames = ""; // Will hold the reader names after converting from byte array to a single string.
string[] readerList = null; // String array of the Reader Names
int idx = 0;
// Established using ScardEstablishedContext()
retcode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext);
if (retcode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retcode, "");
return;
}
// List PC/SC card readers installed in the system
// Call SCardListReaders to get the total length of the reader names
retcode = ModWinsCard.SCardListReaders(this.hContext, null, null, ref readerCount);
if (retcode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retcode, "");
return;
}
else
{
returnData = new byte[readerCount];
// Call SCardListReaders this time passing the array to hold the return data.
retcode = ModWinsCard.SCardListReaders(this.hContext, null, returnData, ref readerCount);
if (retcode != ModWinsCard.SCARD_S_SUCCESS)
{
displayOut(1, retcode, "");
return;
}
else
{
displayOut(0, 0, "SCardListReaders...OK");
// Convert the return data to a string
readerNames = System.Text.ASCIIEncoding.ASCII.GetString(returnData);
// Parse the string and split the reader names. Delimited by \0.
readerList = readerNames.Split('\0');
// Clear the combo list of all items.
cbReader.Items.Clear();
// For each string in the array, add them to the combo list
for (idx = 0; idx < readerList.Length; idx++)
{
cbReader.Items.Add(readerList[idx]);
}
cbReader.SelectedIndex = 0;
}
}
btnConnect.Enabled = true;
btnReset.Enabled = true;
}