[Swig-user] new to swig and callbacks wondering if swig can do this and any pointers.

[mattdavis <som...@gm...>]

Hi everyone,

I am new to swig and have some questions about callbacks.  I would love any
help, hints, or links to pages that might contain more information for me. 
So here is my current situation. I have 5 function that I am trying to wrap
in swig. There are 2 RegisterForNotification function which accept an
EventID and an either an EventResponder or an EventListner.  The
EventListener and EventResponder are functions which get called when an
event is raised RaiseEvent notifies all the listeners first and then calls
the event responder.  There may be multiple listeners, but only one
responder.  The listeners may do some processing, but do not provide a
result.  The responder handles the event and returns a result. the other 2
are UnregisterForNotification which takes an EventID and either an
EventListener or EventResponder.

The other question I have is do I need to wrap the EventListner and
EventResponder?  The following code is in the .h file

typedef CBFunctor3wRet<EventId, const String&, const Argument&, Result>
EventListener;
typedef CBFunctor3wRet<EventId, const String&, Argument&, Result>
EventResponder;

does that mean that it will be wrapped or do I have to specifically include
it?  I have also already wrapped my String and Result classes but haven't
yet wrapped the Argument class.  I am assuming that I will need to wrap the
Argument class as well.

What I want to be able to do is call these functions from a python script. 
So for example if a REQUIREPASSWORD event pops up then I can send it a
password from the script and I get a result back.  I have done a little
digging around and from what I can understand to do call backs I have to
have the callback functions defined in C and I wrap them with swig.  Please
correct me if I am wrong.  For what I am trying to do that doesn't fit very
well.  I want to be able to write function in python and be able to pass
them in.  Is this possible?  I have also seen some posts and links to
TypeMaps.  This was a little deeper into swig then I thought I would have to
go.  I am not opposed to doing this, I was just hoping to know if that is
the right approach to this problem or if there is a more simple approach to
this.

Any help is greatly appreciated.
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