public bool Transmit(CAPDU capdu, ref RAPDU rapdu)
{
_capdu = capdu;
if (!Transmit())
return false;
rapdu = _rapdu;
return true;
}
/**m* SCardChannel/Transmit
*
* NAME
* SCardChannel.Transmit()
*
* SYNOPSIS
* bool Transmit()
* RAPDU Transmit(CAPDU capdu)
* bool Transmit(CAPDU capdu, ref RAPDU rapdu)
* void Transmit(CAPDU capdu, TransmitDoneCallback callback)
*
* DESCRIPTION
* Sends a command APDU (CAPDU) to the connected card, and retrieves its response APDU (RAPDU)
*
* SOURCE
*
* SCardChannel card = new SCardChannel( ... reader ... );
* if (!card.Connect( SCARD.PROTOCOL_T0|SCARD.PROTOCOL_T1 ))
* {
* // handle error
* }
*
*
* // Example 1
* // ---------
*
* card.Command = new CAPDU("00 A4 00 00 02 3F 00");
* if (!card.Transmit())
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + card.Response.AsString(" "));
*
*
* // Example 2
* // ---------
*
* RAPDU response = card.Transmit(new CAPDU("00 A4 00 00 02 3F 00")))
* if (response == null)
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + response.AsString(" "));
*
*
* // Example 3
* // ---------
*
* CAPDU command = new CAPDU("00 A4 00 00 02 3F 00");
* RAPDU response = new RAPDU();
* if (!card.Transmit(command, ref response))
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + response.AsString(" "));
*
*
* // Example 4
* // ---------
*
* // In this example the Transmit is performed by a background thread
* // We supply a delegate so the main class (window/form) will be notified
* // when Transmit will return
*
* delegate void OnTransmitDoneInvoker(RAPDU response);
*
* void OnTransmitDone(RAPDU response)
* {
* // Ensure we're back in the context of the main thread (application's message pump)
* if (this.InvokeRequired)
* {
* this.BeginInvoke(new OnTransmitDoneInvoker(OnTransmitDone), response);
* return;
* }
*
* if (response == null)
* {
* // handle error
* }
*
* MessageBox.Show("Card answered: " + response.AsString(" "));
* }
*
* card.Transmit(new CAPDU("00 A4 00 00 02 3F 00"), new SCardChannel.TransmitDoneCallback(OnTransmitDone));
*
*
* SEE ALSO
* SCardChannel.Connect
* SCardChannel.Transmit
* SCardChannel.Command
* SCardChannel.Response
*
**/
public bool Transmit()
{
byte[] rsp_buffer = new byte[258];
uint rsp_length = 258;
uint rc;
_rapdu = null;
rc = SCARD.Transmit(_hCard,
IntPtr.Zero,
_capdu.Bytes,
_capdu.Size,
IntPtr.Zero, rsp_buffer, ref rsp_length);
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
return false;
}
_rapdu = new RAPDU(rsp_buffer, (int)rsp_length);
return true;
}
