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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support ».NET COM - Determine connected state of IQFeed
Author Topic: .NET COM - Determine connected state of IQFeed (4 messages, Page 1 of 1)

kleelof
-Interested User-
Posts: 23
Joined: May 30, 2010
Posted: May 30, 2010 05:41 AM          Msg. 1 of 4
Hello,

How can I determine if the IQFeed server has connected and disconnected?

take care,
lee

kleelof
-Interested User-
Posts: 23
Joined: May 30, 2010
Posted: May 30, 2010 05:48 AM          Msg. 2 of 4
Nevermind....programmer error.

kleelof
-Interested User-
Posts: 23
Joined: May 30, 2010
Posted: May 30, 2010 06:02 AM          Msg. 3 of 4
Hello,


Ok. I found the technique, but it is extremely unreliable. Here is what I am using:

Private Sub IQFeed_SystemMessage(ByVal eventSender As System.Object, ByVal e As AxIQFEEDYLib._DIQFeedYEvents_SystemMessageEvent) Handles IQFeed.SystemMessage
Debug.WriteLine("SystemMessage" + e.strSystemData)
Select Case True
Case InStr(e.strSystemData, "S,SERVER CONNECTED")
ServerPanel1.state = ServerPanel.ServerPanelStates.connectedToIQFeed

End Select
End Sub

Out of more than 10 launches, it worked twice.


take care,
lee

DTN_Steve_S
-DTN Guru-
Posts: 2093
Joined: Nov 21, 2005
Posted: Jun 7, 2010 09:42 AM          Msg. 4 of 4
You should certainly be able to use the S,SERVER CONNECTED system message (and the paired S,SERVER DISCONNECTED system message) to determine if the feed is connected or not.

When you say that it only worked 2 out of 10 launches. Are you saying that in the other 8 launches, that this message was never delivered to your app?
 

 

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