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»Forums Index »Archive (2017 and earlier) »DTN.IQ Client Software Support »How to prevent disconnection IQLink

Author	Topic: How to prevent disconnection IQLink (3 messages, Page 1 of 1)
Anton Prihodko -Interested User- Posts: 1 Joined: Jul 4, 2010	Posted: Jul 5, 2010 12:23 AM Msg. 1 of 3 Hello I have a question I want to collect data from IQFeed Client (I installed the latest version) via DDE To do this, I run IQLinkLauncher, click "Start IQLink" (there is a connection to the server) then I close the window IQLinkLauncher. I see two icons: IQConnectionManager and DDE. Then I turn on my program which collects data via DDE Everything works fine, but ... As soon as I disable the program, the connection IQFeed client to the server, too, disappears (disappearing icons IQConnectionManager and DDE). I have to re-run IQLinkLauncher, that would reconnect The same thing happens if I'm taking data from DDE in Excel. One has only to shut down Excel, as icons IQConnectionManager and DDE disappear. Can you please tell how to make that connection would not lost even if I temporarily disable programs that take data on DDE? And yet you please tell, how do I organize automatic connections (which would not have to press the button "Start IQLink" in IQLinkLauncher?
DTN_Steve_S -DTN Guru- Posts: 2093 Joined: Nov 21, 2005	Posted: Jul 6, 2010 10:39 AM Msg. 2 of 3 Hello Anton, what you are describing seems to be the way IQConnect is intended to function. As soon as all applications which use the feed have disconnected, IQConnect will shut down requiring to be relaunched the next time it is needed. If you are really wanting to develop your own application to use IQFeed data, I would recommend that you signup to be a registered 3rd party developer. Doing so will give you access to complete documentation for the API including all necessary steps to launch or shutdown the feed programatically. If you are just wanting to keep the feed running all the time, I would recommend that run another IQFeed compatible application alongside your DDE implementation for the sole purpose of keeping an active connection to the feed and keeping it running.
AMA -DTN Evangelist- Posts: 183 Joined: Aug 1, 2007	Posted: Nov 24, 2010 04:08 PM Msg. 3 of 3 Slightly different situation here, but a solution that might work for this thread. I have an Excel spreadsheet that takes a while to crank up when first connecting with DDE/IQlink. To get around this, what I did was create a second spreadsheet that does just one thing - show the current price of a vanilla stock(pick your choice; maybe AAPL, MSFT, IBM, etc.). About as simple as possible. I crank -this- spreadsheet up and it connects right away w/DDE. Once this is up, I crank up my main spreadsheet(has lots of stuff in it), and it fires up right away. Only a second or two to fill in all of the values. I go ahead and leave the simple/starter spreadsheet up, in case I want to restart my main sheet, etc. At the end of the day, kill both and I'm done. So, I'd suggest a starter sheet for the problem listed above, and leave it going, no matter what other sheets you're using.