gtkD MenuItem addOnActivate

[Steve Teale]

Can anyone who knows about gtkD tell me what is the intention of the MenuItem
argument to the delegate passed as the first argument to this method.

I was hoping that this was to allow the transfer of some userdata to the
handler, but I don't see any such provision for adding userdata in the
MenuItem class.

I have Googled on this topic at some length, but not found any clue. Of
course, I could be asking the wrong questions.

Thanks
Steve