Using COM from VB/C#?

[rangie]

Hi,

The BA software and these forums are excellent but i've now hit a problem.

I'm trying to use the COM interface from VB/C# (VS2010). I got a little VB test app running that responds to events from BA. Works fine _until_ i shut my app down and restart it to find that it no longer sees the events. Calls to eg getBalance() do still work though, so the link isn't broken entirely. If I then restart BA and then my app, everything works again until i restart my app a second time.

I've tried reinstalling BA and using the RegCleaner thing i found on this forum. No change. I also wrote a C# version of the app and it (mis)behaves in exactly the same way.

I assume i'm doing something wrong in either the event-handling or app shutdown. Any help would be much appreciated as it's driving me mad at the mo.

Here's a simple module that shows the problem (there's also a form with 2 buttons that just call the start/stop subs) - it just beeps every time an update event occurs:
------------------------------------------------------
Module Module1
Dim WithEvents ba As BettingAssistantCom.Application.ComClass

Public Sub ba_pricesUpdated() Handles ba.pricesUpdated
Beep()
End Sub

Public Sub start_looking()
If ba Is Nothing Then
ba = New BettingAssistantCom.Application.ComClass
End If
End Sub

Public Sub stop_looking()
ba = Nothing
End Sub
End Module
------------------------------------------------------

and another that sets up the event handling in a different way but behaves the same:

------------------------------------------------------
Module Module1
Dim WithEvents ba As BettingAssistantCom.Application.ComClass

Public Sub pricesUpdated()
Beep()
End Sub

Public Sub start_looking()
If ba Is Nothing Then
ba = New BettingAssistantCom.Application.ComClass

AddHandler ba.pricesUpdated, AddressOf pricesUpdated
End If
End Sub

Public Sub stop_looking()
RemoveHandler ba.pricesUpdated, AddressOf pricesUpdated

ba = Nothing
End Sub
End Module

------------------------------------------------------

what am i doing wrong/missing?

[GaryRussell]

This could be a problem in the way that BA fires the events. I will investigate and get back to you asap.

[GaryRussell]

Please uninstall and re-install from the link below and let me know if it works.

http://www.gruss-software.co.uk/Betting ... _Beta2.msi

[rangie]

Yep, you nailed it

even tried both VB and C# apps at the same time, shutting just one down or both. seems to be running perfectly the whole time.

Thanks very much for sorting this - epic support.

baz.