> >>>> On 15 Aug 2002 17:05:51 -0400, Josef Sachs said:

>  Can anyone tell me how to access a COM object's nondefault interface?

>  I saw the postings from mhurwitch@[...].com and
>  Toby Dickenson <htrd90@[...].org> on the subject in 1999,
>  and I tried the methodology suggested (below) but it just
>  crashes pythonwin.

>  I'd greatly appreciate any assistance.

>  By the way, is there a better place to ask Python-win32 questions?
>  I have hardly received any responses to my recent postings.

>  def qi(object,iid):
>   # Query for given iid, but use the IDispatch wrapper. The given iid
>   # must correspond to a dual interface or dispinterface
>   dispatch=object._oleobj_.QueryInterface(iid,pythoncom.IID_IDispatch)
>   # Create the best dispatch object we can, using makepy version if possible
>   return win32com.client.Dispatch(dispatch,resultCLSID=iid)

I have now also tried Mark Hammond's suggested methodology from an article
posted 2000/07/27 (Subject: Re: Two COM Questions: QueryInterface, and
Callback Inheritance), but it also crashes pythonwin.  Any suggestions?

> >> import win32com.client
> >> x=win32com.client.DispatchWithEvents("XMsg2.RoxBase.1", eventHandlerClass)
> >> a=x.GetMessage()
> >> a
<win32com.gen_py.xMsg2 CLIENT - Rox System Interface.IOrderAck> 
> >> import win32com.client.gencache
> >> m=win32com.client.gencache.GetModuleForCLSID('{E21C8E4F-9D58-4618-B4E5-D8F1B0EAF649}')
> >> m
<module 'win32com.gen_py.497668DA-5952-4028-AB0A-20E2E55C9490x0x1x0' from 'G:\Python22\Lib\s
ite-packages\win32com\gen_py\497668DA-5952-4028-AB0A-20E2E55C9490x0x1x0.pyc'> 
> >> b=m.IxMessage
> >> b
<class win32com.gen_py.497668DA-5952-4028-AB0A-20E2E55C9490x0x1x0.IxMessage at 0x0141DE80> 
> >> c=b(a)
> >> c
<win32com.gen_py.xMsg2 CLIENT - Rox System Interface.IxMessage> 
> >> c.SenderSeqNumber
[crash]
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