private string getcardUID() //only for mifare 1k cards
{
string cardUID = "";
byte[] receivedUID = new byte[256];
Card.SCARD_IO_REQUEST request = new Card.SCARD_IO_REQUEST();
request.dwProtocol = Card.SCARD_PROTOCOL_T1;
request.cbPciLength = System.Runtime.InteropServices.Marshal.SizeOf(typeof(Card.SCARD_IO_REQUEST));
byte[] sendBytes = new byte[] { 0xFF, 0xCA, 0x00, 0x00, 0x00 }; //get UID command for Mifare cards
int outBytes = receivedUID.Length;
int status = Card.SCardTransmit(hCard, ref request, ref sendBytes[0], sendBytes.Length, ref request, ref receivedUID[0], ref outBytes);
if (status != Card.SCARD_S_SUCCESS)
{
cardUID = "Error";
string msg = "Error get UID";
printMessage(2, msg);
}
else
{
cardUID = BitConverter.ToString(receivedUID.Take(4).ToArray()).Replace("-", string.Empty).ToLower();
}
return(cardUID);
}
public string GetCardUID()
{
string cardUID = "";
byte[] receivedUID = new byte[256];
Card.SCARD_IO_REQUEST request = new Card.SCARD_IO_REQUEST();
request.dwProtocol = Card.SCARD_PROTOCOL_T1;
request.cbPciLength = System.Runtime.InteropServices.Marshal.SizeOf(typeof(Card.SCARD_IO_REQUEST));
byte[] sendBytes = new byte[] { 0xFF, 0xCA, 0x00, 0x00, 0x00 };
int outBytes = receivedUID.Length;
int status = Card.SCardTransmit(hCard, ref request, ref sendBytes[0], sendBytes.Length, ref request, ref receivedUID[0], ref outBytes);
if (status != Card.SCARD_S_SUCCESS)
{
cardUID = "";
}
else
{
cardUID = BitConverter.ToString(receivedUID.Take(4).ToArray()).Replace("-", string.Empty).ToLower();
}
return(cardUID);
}
private void WaitChangeStatus(object sender, DoWorkEventArgs e)
{
while (!e.Cancel)
{
int result;
lock (this)
{
if (!this._contextState)
{
return;
}
result = Card.SCardGetStatusChange(this._context, 1000, ref this._state, this._readerCount);
//Console.WriteLine(this._state.RdrEventState);
//Console.WriteLine(Card.SCARD_STATE_CHANGED);
string cardUID = "";
byte[] receivedUID = new byte[256];
Card.SCARD_IO_REQUEST request = new Card.SCARD_IO_REQUEST();
request.dwProtocol = Card.SCARD_PROTOCOL_T1;
request.cbPciLength = System.Runtime.InteropServices.Marshal.SizeOf(typeof(Card.SCARD_IO_REQUEST));
byte[] sendBytes = new byte[] { 0xFF, 0xCA, 0x00, 0x00, 0x00 }; //get UID command for Mifare cards
int outBytes = receivedUID.Length;
int status = Card.SCardTransmit(this._context, ref request, ref sendBytes[0], sendBytes.Length, ref request, ref receivedUID[0], ref outBytes);
if (status != Card.SCARD_S_SUCCESS)
{
cardUID = "Error";
}
else
{
cardUID = BitConverter.ToString(receivedUID.Take(4).ToArray()).Replace("-", string.Empty).ToLower();
}
Console.WriteLine(cardUID);
}
if (result == Card.SCARD_E_TIMEOUT)
{
continue;
}
if ((this._state.RdrEventState & Card.SCARD_STATE_CHANGED) == Card.SCARD_STATE_CHANGED)
{
int state = 0;
if ((this._state.RdrEventState & Card.SCARD_STATE_PRESENT) == Card.SCARD_STATE_PRESENT &&
(this._state.RdrEventState & Card.SCARD_STATE_PRESENT) != Card.SCARD_STATE_PRESENT)
{
state = 1;
}
else if ((this._state.RdrEventState & Card.SCARD_STATE_EMPTY) == Card.SCARD_STATE_EMPTY &&
(this._state.RdrEventState & Card.SCARD_STATE_EMPTY) != Card.SCARD_STATE_EMPTY)
{
state = 2;
}
if (state != 0 && this._state.RdrCurrState != 0)
{
switch (state)
{
case 1:
{
MessageBox.Show("Card inserted");
break;
}
case 2:
{
MessageBox.Show("Card ejected");
break;
}
default:
{
MessageBox.Show("Some other state...");
break;
}
}
}
this._state.RdrCurrState = this._state.RdrEventState;
}
}
}
