public static void Main()
{
using (var ctx = new SCardContext()) {
ctx.Establish(SCardScope.System);
var readerNames = ctx.GetReaders();
var readerStates = ctx.GetReaderStatus(readerNames);
foreach (var state in readerStates) {
Console.WriteLine(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
Console.WriteLine("Reader: {0}\n" +
"CurrentState: {1}\n" +
"EventState: {2}\n" +
"CurrentStateValue: {3}\n" +
"EventStateValue: {4}\n" +
"UserData: {5}\n" +
"CardChangeEventCnt: {6}\n" +
"ATR: {7}",
state.ReaderName,
state.CurrentState,
state.EventState,
state.CurrentStateValue,
state.EventStateValue,
state.UserData,
state.CardChangeEventCnt,
BitConverter.ToString(state.Atr ?? new byte[0]));
state.Dispose();
}
ctx.Release();
}
Console.ReadKey();
}
public string GetReaderStatus()
{
SCardContext context = new SCardContext();
context.Establish(SCardScope.System);
if (context.GetReaders().All(r => r != _connectedReader)) // Check to see if the context has _connectedReader as a reader before we use it.
{
context.Dispose();
return string.Format("{0} cannot be found in the list of connected readers", _connectedReader);
}
var state = context.GetReaderStatus(_connectedReader);
if (state == null)
{
context.Dispose();
return string.Format("Cannot get the reader status of {0}.", _connectedReader);
}
context.Dispose();
return string.Format("Name: {1}{0}Current State: {2}{0}Event State: {3}{0}" +
"Current State Value: {4}{0}Event State Value: {5}{0}" +
"User Data: {6}{0}Card Change Event Count: {7}{0}" +
"ATR: {8}{0}", Environment.NewLine, state.ReaderName, state.CurrentState,
state.EventState, state.CurrentStateValue, state.EventStateValue, state.UserData,
state.CardChangeEventCnt, state.Atr.Length == 0 ? "0" : BitConverter.ToString(state.Atr));
}
static void Main(string[] args)
{
// Retrieve the names of all installed readers.
SCardContext ctx = new SCardContext();
ctx.Establish(SCardScope.System);
string[] readernames = ctx.GetReaders();
/* Get the current status of each reader in "readernames".
*/
SCardReaderState[] states = ctx.GetReaderStatus(readernames);
foreach (SCardReaderState state in states)
{
Console.WriteLine(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
Console.WriteLine("Reader: " + state.ReaderName);
Console.WriteLine("CurrentState: " + state.CurrentState
+ " EventState: " + state.EventState + "\n"
+ "CurrentStateValue: " + state.CurrentStateValue
+ " EventStateValue: " + state.EventStateValue);
Console.WriteLine("UserData: " + state.UserData.ToString()
+ " CardChangeEventCnt: " + state.CardChangeEventCnt);
Console.WriteLine("ATR: " + StringAtr(state.ATR));
}
ctx.Release();
return;
}