private void btnLoopReadClick(object sender, EventArgs e)
{
Log.WriteLog(mbSession.ResourceName + " Lectura continua", "", txtFile.Text + ".txt");
_worker = new BackgroundWorker();
_worker.WorkerSupportsCancellation = true;
_worker.DoWork += new DoWorkEventHandler((state, args) =>
{
do
{
if (_worker.CancellationPending)
{
break;
}
//mbSession.Timeout = Session.InfiniteTimeout;
try
{
mbSession.SetAttributeBoolean(AttributeType.DmaAllowEn, true);
MessageBasedSessionReader Reader = new MessageBasedSessionReader(mbSession);
Reader.BinaryEncoding = BinaryEncoding.DefiniteLengthBlockData;
Reader.BinaryEncoding = BinaryEncoding.RawLittleEndian;
string responseString2 = Reader.ReadLine();
if (responseString2.Length != 1)
{
Log.SimpleWriteLog(responseString2, txtFile.Text + ".txt");
//readTextBox.Text += responseString2 + ",";
}
}
catch (VisaException ex)
{
string textToWrite = ReplaceCommonEscapeSequences("STOP");
//readTextBox.Text = "Deteniendo\n";
mbSession.Write(textToWrite);
textToWrite = ReplaceCommonEscapeSequences("DMA?");
//readTextBox.Text = "Llenando buffer...";
mbSession.Write(textToWrite);
//MessageBox.Show("¡Tiempo excedido desde que se recibió la primer respesta! \\n Error: "+ ex.Message);
//return;
}
} while (true);
});
_worker.RunWorkerAsync();
readTextBox.Text = Log.dumpLine(txtFile.Text + ".txt");
btnLoopRead.Visible = false;
btnCancel.Visible = true;
btnCancel.Enabled = true;
}
public void Dispose()
{
if (_handleSessionLifetime)
{
if (_instrumentSession != null)
{
((IDisposable)(_instrumentSession)).Dispose();
_instrumentSession = null;
}
}
_reader = null;
GC.SuppressFinalize(this);
}
/// <summary>
/// This task will use the MessageBasedSession passed in. This task can either the MessageBasedSession or leave it open for the caller to close.
/// </summary>
/// <param name="session">MessageBasedSession used by this task.</param>
/// <param name="taskHandlesSessionLifetime">If true, the task will close session when the task is disposed. If false, the caller is responsible for closing session.</param>
public DUTMfgMode(MessageBasedSession session, bool taskHandlesSessionLifetime)
{
if (session == null)
{
throw new ArgumentNullException("session");
}
_instrumentSession = session;
_instrumentSession.Timeout = 2000;
_instrumentSession.TerminationCharacterEnabled = true;
_instrumentSession.TerminationCharacter = 10;
// The caller can control the VISA session lifetime by passing in false for taskHandlesSessionLifetime. If taskHandlesSessionLifetime
// is true, then the VISA session will be closed when the caller disposes this task.
_handleSessionLifetime = taskHandlesSessionLifetime;
// The MessageBasedSessionReader is used to read and parse data returned from the instrument
_reader = new MessageBasedSessionReader(_instrumentSession);
}
protected char[] ReadBinaryEncodedData(int numChars)
{
reader = new MessageBasedSessionReader(session);
reader.BinaryEncoding = BinaryEncoding.DefiniteLengthBlockData;
return(reader.ReadChars(numChars));
}
