using sub() as an action in invokeGUIthread() method

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how do i use invokeGUIthread() and create a sub() within it as an action below is an example of what i have but it willnot compile

VB

 Private Sub softPhone_IncommingCall(ByVal sender As Object, ByVal e As VoIPEventArgs(Of IPhoneCall))
InvokeGUIThread(
   Sub()
      labelCallStateInfo.Text = "Incoming call"
      labelDialingNumber.Text = String.Format("from {0}", e.Item.DialInfo)
      phoneCall = e.Item
      WireUpCallEvents()
      inComingCall = True   
   End Sub )
End Sub

Posted 18-Jan-12 4:25am

Gasbie

Updated 18-Jan-12 4:53am

fjdiewornncalwe

v2

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Jason Gleim · Answer 1 · 2012-01-18T05:02:00

You should declare your inner sub as it's own subroutine and add a delegate to it. Then, in your event handler you can check to see if an Invoke is required. If so, you invoke the delegate packing up any parameters and passing them into the delegate.

There is LOTS of info on marshalling calls to the UI thread. Including a number of C# and VB.NET projects on this web site that demonstrate the technique.