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You should look at EClientSocket.java: It spawns an asynchronous thread with tm_reader = new EReader( this, dis); The wrapper functions are called from this thread whenever a message is received by

yep, I am pretty sure that all that requestData() does is read data that has arrived from TWS, and call the appropriate EWrapper member function for tickPrice etc. If it was async, there would be no

You should look at EClientSocket.java: It spawns an asynchronous thread with tm_reader = new EReader( this, dis); The wrapper functions are called from this thread whenever a message is

usernew, maybe i do not know what you want or misunderstand TWS control but you need to send requestData() only once - you can do it before the session. David

I need to get info on n tickers, so this is what I do at the moment: tws.connect(); for(i=0; i<n; i++){ tws.requestdata(...) } tws.wait_trans(); // to make sure all the prices have

There are basically two methods to do this: 1. wait() / notifyAll() communication In your main program use wait() to go to sleep without polling. Catch the interruptedException and go on. In the

I have connected fine using Java and C++ API to TWS, however using Visual Studio.NET and C#, I get 'An unhandled exception of type: System.Runtime.InteropServices.COMException occured in

Hello, I'm evaluating TWS ActiveX component in Visual Basic and I have some questions/problems regarding 'tickPrice' and 'tickSize' events (I'm using the web based Demo system for this

Both tickPrice and tickSize are autonamous of one another. Further they only fire when there is a change. An example would be 10 trades going off at the same price at different volumes would fire

Thanks Scott, this is as I understand it. So there is no way to detect various trades at the same price and size? This could be a very bad issue because it is important (at least for me, and I think

When I started working with TWS ActiveX with VB I explored tickPrice and tickSize first. My observation was that either event occurred once a second and only if a number changed. You could build a set

Abandon the thought of computing volume from IB's data. You will only get a small fraction of all ticks from IB. Okay for some things, but not anywhere near a full data feed. Richard } Thanks

Michael, If you use a common function for both price and size, you will see that the price comes first but as one person stated correctly they would have to be independent events. So when a new price

Hi, If you are still wondering how to place an OCA in VB, I did some testing today and was able to get it to work. Here's what you do: The OCA property has a default value of null (""). Set this

...thanks for keep us up to date......seriously ...post any and all peculiarities you find with the OCA process... Scott property ()

This message was originally posted on IB's API forum. I Thought it worthy of our archives and discussion. Posted on Wednesday, June 19, 2002 - 06:26 am:

To any and all... I have never used the demo server. I have always used my accounts...for testing What is up with the demo server? When I fire up my client side TWS what special user name and

Hi, I am working on my VB API for IB platform. Thanx to ppl like you, everything starting to work just fine. BUT.. I wasted 1 week trying to send limit order from my box. what is wrong with this

First, your ORDERID - 1 could be a PROBLEM - generate a larger number and increase by delta of 10 or more ( still first order may cause duplicate error - keep trying or increase first and then place

Thank you for trying David. But again it is not working.. everything else works fine. Anybody know how to solve my 1 week long torture with this line ?? Please, post a sample code line which really