public void StartWatch(string Symbol, LevelIIUpdateMessageHandler handler)
{
LevelIIUpdateMessageHandler mh = null;
if (htWatchEvents.ContainsKey(Symbol))
{
mh = htWatchEvents[Symbol] as LevelIIUpdateMessageHandler;
mh += handler;
}
else
{
mh += handler;
htWatchEvents.Add(Symbol, mh);
bs.Send('w' + Symbol + "\n");
}
}
public void StopWatch(string Symbol, LevelIIUpdateMessageHandler handler)
{
LevelIIUpdateMessageHandler mh = null;
if (htWatchEvents.ContainsKey(Symbol))
{
mh = htWatchEvents[Symbol] as LevelIIUpdateMessageHandler;
mh -= handler;
if (null == mh)
{
Console.WriteLine("Stopping watch on {0}", Symbol);
bs.Send('r' + Symbol + "\n");
htWatchEvents.Remove(Symbol);
}
}
}
private void UMessage(BufferArgs args)
{
LevelIIUpdateMessage Message;
try {
Message = new LevelIIUpdateMessage(args.items);
if (htWatchEvents.ContainsKey(Message.Symbol))
{
LevelIIUpdateMessageHandler mh = htWatchEvents[Message.Symbol] as LevelIIUpdateMessageHandler;
if (null != mh)
{
mh(this, new LevelIIUpdateMessageEventArgs(Message));
}
}
}
catch (Exception e) {
Console.WriteLine("IQFeedLevelII.UMessage error: " + args.Line);
Console.WriteLine(" ** Exception {0}", e.ToString());
}
}
