Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)

"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam
"You have an excellent product !!!!!!" - Comment from Arely
"As a past ******* customer(and not a happy one), IQ Feed by DTN is a much better and cheaper product with great customer support. I have had no problems at all since switching over." - Comment from Public Forum
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"Its working FABULOUSLY for me!! Holy cow...there has been so much I've been missing lately, and with this feed and Linnsoft software...I'm in the game now." - Comment from Chris R.
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"I would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
Home  Search  Register  Login  Blogs Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTN_IQFeed on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
Viewing User Profile for: laughlin
About Contact
Joined: Aug 3, 2005 05:12 PM
Last Post: Jan 18, 2017 08:35 PM
Last Visit: Jan 19, 2017 09:40 AM
Location: Tulsa, Ok
Occupation: Computer Consultant
Yahoo IM:
Post Statistics
laughlin has contributed to 24 posts out of 18446 total posts (0.13%) in 4,644 days (0.01 posts per day).

20 Most recent posts:
IQFeed Developer Support » Link problem Jan 18, 2017 08:35 PM (Total replies: 6)

We'll chat in the morning.


Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » Link problem Jan 18, 2017 01:46 PM (Total replies: 6)

Tim, thanks.

I cannot find a reference to IQ32 in my code, but I do think I link against it.

On another note, my best friend (who is a hell of software engineer) is telling me that I should redo the interface to IQFeed as it is so old. He thinks that there has to be deprecation affecting me. All I do with the feed is get data (five second summaries are perfect) and put it into my own charting code. So, I really just need to start the feed, give it two symbols (S&P 500 futures and Nasdaq futures) and receive the data. He is telling me to use C# (I'm an old line C programmer - don't ask how old). So I'm reading and I could be happy with C#.

Here's the question. Aside from starting the feed, what sample code and where in it should I look for guidance, help, etc? Details would be appreciated. Heck, any and all help would be appreciated.


PS: Did I mention help? Thank you. Really.

Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » Link problem Jan 10, 2017 01:23 PM (Total replies: 6)

Thanks Tim. Any help is appreciated.

Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » Link problem Jan 7, 2017 11:02 AM (Total replies: 6)

It has been many years since I did IQFeed development and I need some help.

I have a directory with two variants of the same program: Sock and SockDlg. Sock is compiling and linking great. SockDlg compiles fine but gives these linkage errors:

SockDlg.obj : error LNK2001: unresolved external symbol "int __stdcall RegisterClientApp(struct HWND__ *,char *,char *,char *)" (?RegisterClientApp@@YGHPAUHWND__@@PAD11@Z)
nafxcw.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex
nafxcw.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex
libc.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Release/SockDlg.exe : fatal error LNK1120: 4 unresolved externals
Error executing link.exe.

Any ideas what I am doing wrong (I am a real-time C coder, C++ on windows is not what I normally do).


Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » @YM# continuous contract for DJIA mini's Mar 30, 2010 10:36 AM (Total replies: 3)

My bad. It's so long since I worried about the account, that I forgot to check. How do I get it live?


Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » @YM# continuous contract for DJIA mini's Mar 30, 2010 10:11 AM (Total replies: 3)

@YM# appears to be running 4-5 minutes (not ticks) behind my IB display.

Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » Summary msg fields 4-Last and 21-Close Sep 10, 2008 11:29 AM (Total replies: 1)

I seem to have made a mistake in reading/understanding the documentation (for a very long time). I thought both fields 4 (Last trade) and 21 (Closing price/trade) referred to 'today', but it now appears that field 21 refers to 'yesterday'. Would you please confirm and elaborate. Thank-you. Terry

Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » historical fundamentals Jul 10, 2008 04:27 PM (Total replies: 1)

How do I get the 'fundamental message' accurate to an historical date?

Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » Info about DISCONNECTED Aug 16, 2007 05:13 PM (Total replies: 11)

I was disconnected 3 times today. This never happened before the last rollout (July) and it is not everyday, but this is the second day this week with disconnects.


Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » fundmental message request Jul 26, 2007 11:35 AM (Total replies: 3)

Thanks for the confirmation. Now I know I am not batty.

I am using the fundamental request as a ping. I need to pass a message from an interrupt routine where action is supposed to be limited to an somewhat lengthy (time wise) routine. SO, I ping (fundamental request) the server and when I get the reply and verify that it is the reply to my ping request, I trigger my time lengthy action routine.


Terry Laughlin
Buy low, soar high.

IQFeed Developer Support » fundmental message request Jul 26, 2007 10:54 AM (Total replies: 3)

Sorry to be so late with this bug, but I'm just out of the hospital and beginning to pay attention to the world.

I send a fundamental request (used as a ping [which I requested a few years ago, but haven't seen]), but get no reply in the new system. As the specially requested fundamental message ( f;symbol]<CR><LR> ) is my trigger to action, my action never happens in the new system (148 farm), but still works fine on the 156 farm.

I checked the new docs and there has been no change from the old.



Terry Laughlin
Buy low, soar high.

IQFeed Datafeed Wish List » Globex/Ecbot depth? May 3, 2007 10:07 AM (Total replies: 4)

Add another request for Globex market depth in the api. At one point it was thought to be "quite high up". Should I sit on the edge of chair?



Terry Laughlin
Buy low, soar high.

Sorry I'm in the wrong group and I should have opened a new thread, but here I am. I checked the CUST system message this morning (I was truncating the message yesterday due to screen space restrictions and I don't know what it was then). It shows (pat yourself on the back) 1000 symbols. Who should I call to fix it?


Terry Laughlin
Buy low, soar high.


I'm using tcp for updates, not dde. Is it still surprising that I only get 997 symbols? It does not seem to stress the machine or net. It is not that I cannot get the data in, but rather that the server gives me a symbol limit exceeded error message: "S,SYMBOL LIMIT REACHED". Actually, I picked TCP for it's efficiency. Would you recommend otherwise?


Terry Laughlin

I just signed up for DTH.IQ last week (following you sage advice above). However, I find that I am only getting 997 symbols before I get "S,SYMBOL LIMIT REACHED". After that the 997 appear ok, but I registered 1297 symbols.

I installed DTN.IQ today and then reinstalled IQFeed (version, letting the installer put files in the same directory.

Any advice or is this something you are working on...

Terry Laughlin

Data and Content Support » Random summary message Dec 15, 2005 11:47 AM (Total replies: 1)

Why, when I am 'watch'ing a symbol, do I get a few random summary messages a day?

Terry Laughlin

Data and Content Support » force of a summary message in the watch list Dec 7, 2005 01:19 PM (Total replies: 2)

Thanks for the quick reply. As to why, I am simulating a ping as I elaborated on in the wishes forum.

Terry Laughlin

IQFeed Datafeed Wish List » ping Dec 7, 2005 01:17 PM (Total replies: 2)

Because Windows is threaded, mainstream work may be concurrent with receipt of the updates from IQFeed. To properly mix my work with updates from IQFeed, it would be nice to have coordinating function. In a realtime environment, this is easy in a number of ways. In a non-realtime environment, it is tricky/hard/difficult/impossible.

Therefore, by pinging IQFeed, I can react to the response regardless of other traffic. To work, it must come in on the port that I sent to. For watches, it must come mixed with other watch traffic on the same port. The local part of IQFeed does not have to communicate with the server to meet my needs, just answer the ping.

As you can see from another post, I am simulating this with a force summary message, but the overhead seems a bit high and my coding is a bit obscure as I have to tell my fakes from real fundamental/summary messages.

Ideal would be that I ping(echo) IQFEED with an argument, such as: eARG\r\n

IQFEED responds with: E,ARG\r\n

or 95% of that would be: e\r\n

with a response of: E\r\n

From my point of view, the time stamp is a nice superfluosity. Oh, the actual syntax is irrelevant. The choice to a ping all the way to the server might be nice, but is irrelevant to me.

Terry Laughlin

IQFeed Datafeed Wish List » Seconds in the timestamp Dec 7, 2005 01:01 PM (Total replies: 6)

Thanks for the update.

Terry Laughlin

IQFeed Datafeed Wish List » ping Dec 7, 2005 11:14 AM (Total replies: 2)

Speaking of spoofing time stamps, it would sure be helpful to ping the local DTN IQFeed pgm via sockets and get something similar to a timestamp. No bandwidth to your server. How about it?

Terry Laughlin

Time: Fri April 20, 2018 3:40 AM CFBB v1.2.0 16 ms.
© AderSoftware 2002-2003