private void ScanTimeout(object sender, EventArgs e)
{
TriggerDown();
_dtimer.Stop();
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.ReadTimeout, "Timeout odczytu danych ze skanera"));
CloseConnection();
}
private void OpenConnection()
{
_sPort?.Open();
if (_sPort != null && !_sPort.IsOpen)
{
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.ConnectionNotEstabilished, "Błąd nawiązywania połączenia ze skanerem \nSkaner nie podłączony lub błędna konfiguracja"));
}
}
public void Break()
{
if (_sPort != null)
{
if (_sPort.IsOpen)
{
TriggerDown();
}
}
_dtimer.Stop();
CloseConnection();
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.ReadTimeout, ""));
}
private void InterpreteFrame(byte[] bytes, int length)
{
var mLength = bytes[0];
if (length == mLength) //Configuration frame
{
if (bytes[1] == SsiMessages.GetCheckSumErrorVal())
{
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.CheckSumError, "Błąd sumy kontrolnej w komunikacji SSI"));
}
}
else // Barcode
{
var codeBytes = new byte[length];
Array.Copy(bytes, 0, codeBytes, 0, length);
var barcode = Encoding.ASCII.GetString(codeBytes);
_dtimer.Stop();
CloseConnection();
CompareCode(barcode);
}
}
private void _sPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
var sPort = (SerialPort)sender;
var lData = new List <byte>();
Thread.Sleep(10); //Wait for data to arrive in the recieve buffer
try
{
while (sPort.BytesToRead > 0)
{
lData.Add((byte)sPort.ReadByte());
Thread.Sleep(1);
}
InterpreteFrame(lData.ToArray(), lData.Count);
}
catch (Exception ex)
{
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.ReadTimeout, ""));
}
}
private void CompareCode(string barcode)
{
if (_mode == ErrorCodeDictionary.ReadMode.CodeCompare)
{
if (string.Compare(barcode, _codeToCompare, StringComparison.OrdinalIgnoreCase) == 0)
{
ReadedCodeEvent?.Invoke(this, new ReadedCodeEventArgs(barcode)); // RaiseEvent ReadedCode (barcode);
}
else
{
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.CodeNotCorrect, ""));
_dtimer?.Stop();
}
}
else
{
ReadedCodeEvent?.Invoke(this, new ReadedCodeEventArgs(barcode)); // RaiseEvent ReadedCode (barcode);
}
_dtimer?.Stop();
CloseConnection();
}
private void SendMessage(byte[] message)
{
try
{
if (_sPort == null)
{
throw new Exception("Błąd podczas wysyłania komunikatu do skanera");
}
if (!_sPort.IsOpen)
{
OpenConnection();
}
_sPort.BaseStream.Flush();
_sPort.Write(message, 0, message.Length);
}
catch (Exception ex)
{
ScannerErrorEvent?.Invoke(this, new ScannerErrorEventArgs(ErrorCodeDictionary.DataReadErrors.ConnectionNotEstabilished, ex.Message));
_dtimer?.Stop();
CloseConnection();
}
}
