Sterling API Developer Thread

So, I've read this entire thread, and while it has been quite informative I still have an issue I'm hoping I can find help with.

I have little experience with trading, but I'm a reasonably experienced programmer making an app using the API for a trading firm in my city. All is going well except for getting quotes, as I need my program to behave slightly differently based on current price.

When I try to get quotes, the OnQuoteUpdate and OnQuoteSnap events are never triggered. I thought I might be doing something wrong, but I downloaded their VB sample projects and those didn't seem to work either. I saw some posts from a few months ago mentioning problems with quotes: is that still the case now?

I'm doing it in C# using Visual Studio 2008. Some of the revelant code bits and my concerns:

quote = new STIQuoteClass(); (should I be using the interface version?)

quote.OnSTIQuoteUpdate += new _ISTIQuoteEvents_OnSTIQuoteUpdateEventHandler(OnQuoteUpdate);
quote.OnSTIQuoteSnap += new _ISTIQuoteEvents_OnSTIQuoteSnapEventHandler(OnQuoteSnap);

OnQuoteUpdate and OnQuoteSnap aremy handling functions. Right now they just show me some information about the quote struct (I put breakpoints in both of them so I know they are never getting called)

When the user enters a symbol and exchange and presses a submit button:
quote.RegisterQuote(order.Symbol, order.Destination);

I also used SubmitQuote and SubmitQuoteStruct but they didn't seem to have any effect. I'm also not sure what the "bstrKey" argument they want is. I assume the bstr is Systems Hungarian notation carried over from VB but I have no idea what sort of "Key" it is. I took a guess that this refered to "Exchange Definitions (Quotes)" on page 17 of the API guide and entered 'N' for NYSE but I might be totally wrong.

Anyway, this problem is the main roadblock preventing me from finishing this app. Any insight at all from those who know more Sterling than I would be much appreciated, heh.
 
Ugh, I feel silly. For anyone who has the same problem, it worked when I used "*" instead of a specific destination in RegisterQuote.
 
Is there a way to submit GoodUntilDate or GoodAfterDate orders using Sterling? I see STIOrder has StartTime and EndTime but docs don't say what they do, nor what format they're in.

Anyone tried these and got them working?
 
CyborgAdmin,

I contacted Sterling and yes they have been experiencing problems with order types, specially server side order types such as the T-stops and S-Stops.

I have created my own trailing/stop orders to limit the use of sterling's order types.

Thank you for the feedback.



Quote from CyborgAdmin:

Hey Dhride

I have no experience with T-Stps in Sterling but I have herd from individual traders that the T-STPs in sterling do not work correctly in general. I dont know if this is the case or not as I have never personally used them. It is possible that the problems your seeing are just a general T-STP issue. We bypassed these issues completely by making our own trailing orders. Hope this helps if you would like I can try and find out specifically what the issues the traders I have talked to have experienced with the T-STPS.
More...
 
i don't use t-stops but i find that using s-stops in the first 3-5 minutes of the day is a real crap shoot. sometimes they work, sometimes they don't. it has cost me thousands. i just have in-program stops instead
 
Anyone notice how Sterling's (base.exe) RAM usage creeps up slowly over the course of the day? If you register more stocks to the API program you've written, the RAM usage increases accordingly.

Does anyone know anything about this? It's as if base.exe is caching quote updates. If this is so, can we access this cached data?
 
Hi. My code fails to trap "Not available for borrow" errors (please see below). Note that I'm using VBA on a spreadsheet.

It's a minor annoyance, but I'm stumped for the error(s) that I'm sure are in my code.

Thanks in advance for any feedback,

Elvis

=========================

'Flag stocks not available for borrow

If STIOrderStatus.osSTIRejected = 38 Then
'Set a flag in the corresponding row
rngLockRange(RowNum) = 1
Range("E64").Value = ReturnCode
Else
Range("E64").Value = ReturnCode
Range("D65").Value = GetStatusString(ReturnCode)
End If

Set Order = Nothing

End Sub
 
DEBUG.PRINT is your friend:
debug.print "reject status=";STIOrderStatus.osSTIRejected

Perhaps the code returned is different than your "trap".

Also, you are using bad form...you should be trapping with an enumeration.

if STIOrderStatus.osSTIRejected = eREJECT_FailedToBorrow Then

.... etc.

where eREJECT_FailedToBorrow is set to 38.
 
Quote from syswizard:

DEBUG.PRINT is your friend:
debug.print "reject status=";STIOrderStatus.osSTIRejected

Perhaps the code returned is different than your "trap".

Also, you are using bad form...you should be trapping with an enumeration.

if STIOrderStatus.osSTIRejected = eREJECT_FailedToBorrow Then

.... etc.

where eREJECT_FailedToBorrow is set to 38.
More...

Hi. Yes, these look like good ideas. I'll try that code.

Thanks a lot for the help and for taking the time to reply: it is much appreciated.

Elvis
 
Hi everyone, I have a quick question. I just had a program developed for me and when I try to connect to sterling, I get a message saying there was an "error while creating Sterling objects." I am not able to get a hold of the programer for another 2 weeks due to his vacation, so I was hoping someone here could help me out with the issue. Thanks.
 
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