/// <summary>
/// Called whenever Excel requests a new RTD topic from the RealTimeData server.
/// </summary>
/// <param name="TopicID"></param>
/// <param name="Strings"></param>
/// <param name="GetNewValues"></param>
/// <returns></returns>
public object ConnectData(int TopicID, ref Array Strings, ref bool GetNewValues)
{
try
{
string queuename = "defaultExcelAddInQueue";
string destinationName = "ExcelAddIn-" + queuename;
if (Strings.Length > 0)
{
queuename = (string)Strings.GetValue(0);
}
// Error message if the queue does not exist
QueueQueryResult result = (QueueQueryResult)_session.QueueQuery(queuename).Result;
if (result.GetQueue() == null)
{
System.Windows.Forms.MessageBox.Show("Error: \n queue " + queuename + " does not exist");
return("error");
}
QpidListener listener;
_topicMessages.Add(TopicID, null);
_topicQueueName.Add(TopicID, queuename);
if (_queueListener.ContainsKey(queuename))
{
listener = _queueListener[queuename];
listener.addTopic(TopicID);
}
else
{
listener = new QpidListener(this);
listener.addTopic(TopicID);
_queueListener.Add(queuename, listener);
_session.AttachMessageListener(listener, destinationName);
_session.MessageSubscribe(queuename, destinationName, MessageAcceptMode.EXPLICIT,
MessageAcquireMode.PRE_ACQUIRED, null, 0, null);
// issue credits
_session.MessageSetFlowMode(destinationName, MessageFlowMode.WINDOW);
_session.MessageFlow(destinationName, MessageCreditUnit.BYTE, ClientSession.MESSAGE_FLOW_MAX_BYTES);
_session.MessageFlow(destinationName, MessageCreditUnit.MESSAGE, 1000);
_session.Sync();
}
}
catch (Exception e)
{
System.Windows.Forms.MessageBox.Show("Error: \n" + e.StackTrace);
return("error");
}
return("waiting");
}
/// <summary>
/// Called whenever Excel requests a new RTD topic from the RealTimeData server.
/// </summary>
/// <param name="TopicID"></param>
/// <param name="Strings"></param>
/// <param name="GetNewValues"></param>
/// <returns></returns>
public object ConnectData(int TopicID, ref Array Strings, ref bool GetNewValues)
{
try
{
string queuename = "defaultExcelAddInQueue";
string destinationName = "ExcelAddIn-" + queuename;
if( Strings.Length > 0 )
{
queuename = (string) Strings.GetValue(0);
}
// Error message if the queue does not exist
QueueQueryResult result = (QueueQueryResult)_session.QueueQuery(queuename).Result;
if( result.GetQueue() == null )
{
System.Windows.Forms.MessageBox.Show("Error: \n queue " + queuename + " does not exist");
return "error";
}
QpidListener listener;
_topicMessages.Add(TopicID, null);
_topicQueueName.Add(TopicID, queuename);
if (_queueListener.ContainsKey(queuename))
{
listener = _queueListener[queuename];
listener.addTopic(TopicID);
}
else
{
listener = new QpidListener(this);
listener.addTopic(TopicID);
_queueListener.Add(queuename, listener);
_session.AttachMessageListener(listener, destinationName);
_session.MessageSubscribe(queuename, destinationName, MessageAcceptMode.EXPLICIT,
MessageAcquireMode.PRE_ACQUIRED, null, 0, null);
// issue credits
_session.MessageSetFlowMode(destinationName, MessageFlowMode.WINDOW);
_session.MessageFlow(destinationName, MessageCreditUnit.BYTE, ClientSession.MESSAGE_FLOW_MAX_BYTES);
_session.MessageFlow(destinationName, MessageCreditUnit.MESSAGE, 1000);
_session.Sync();
}
}
catch (Exception e)
{
System.Windows.Forms.MessageBox.Show("Error: \n" + e.StackTrace);
return "error";
}
return "waiting";
}