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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

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

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:

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

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

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

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

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

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

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

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

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

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 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

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

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

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 received by

So you are saying tickPrice, tickSize etc. are guaranteed to happen by the time requestData() returns ? I thought tickPrice etc. were completely asynchronous.

btw, Have you been able to call connect, and then call disconnect and then call connect again? The second call to connect always seems to cause an exception inside the API, for me anyway. --- Todd