DTN IQFeed, DTN.IQ, DTN ProphetX Support Forums

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)

"I will tell others who want to go into trading that DTN ProphetX is an invaluable tool, I don't think anyone can trade without it..." - Comment from Luther

"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles

"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.

"I've never had DTN go out on me since switching. ******* would go down a couple times every month when I was using them." - Comment from Bryce in AL.

"I just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin

"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry

"This is an excellent value, the system is generous (allowing for 500 stocks) and stable (and really is tick-by-tick), and the support is fantastic." - Comment from Shirin via Email

"Excellent datafeed !!!" - Comment from Arely

"I just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email

"And by the way, have to say this. I love the IQFeed software. It's rock solid and it has a really nice API." - Comment from Thomas via RT Chat

Home

Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather

DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter

»Forums Index »Archive (2017 and earlier) »DTN.IQ Client Software Support »streaming socket protocol?

Author	Topic: streaming socket protocol? (2 messages, Page 1 of 1)
akolonin -Interested User- Posts: 1 Joined: Feb 25, 2009	Posted: Feb 25, 2009 11:40 AM Msg. 1 of 2 In the old code, we used the following format to get the historical data: "HM"+(char)5+symbol+(char)5+days+(char)5+interval+(char)6 or "HD"+(char)5+symbol+(char)5+days+(char)6 it does not work now. I have changed it to "HID"+(char)5+symbol+(char)5+days+(char)5+interval+(char)6 or "HDX"+(char)5+symbol+(char)5+days+(char)6 but it is still not working - hangs up at socket reading. If there is a change in protocol delimiters or something else? At the same time, DDE link and all IQLink diagnostics work just fine. Edited by akolonin on Feb 25, 2009 at 11:43 AM
DTN_Steve_S -DTN Guru- Posts: 2093 Joined: Nov 21, 2005	Posted: Feb 25, 2009 11:47 AM Msg. 2 of 2 It sounds like you are confused about which commands to send to which ports. The commands you posted are for retrieving historical data and should be sent to the Lookup Port. If you want those commands to work, take a look at the top of the "Historical via TCP/IP" documentation for setting up to retrieve historical data. If you are looking for streaming data (as your post title indicates), take a look at the documentation for "Initialzing for TCP/IP" and "Level 1 via TCP/IP". Let me know if you have additional questions.