Re: ATL inheritance mistake

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Tue, 29 Dec 2009 10:03:21 -0500
Message-ID:
<uvpycgJiKHA.5520@TK2MSFTNGP06.phx.gbl>
Barzo wrote:

I try to change the AudioDecoder coclass to implement also the
IAudioRecorderEvents...
 
coclass AudioDecoder
{
 interface IAudioDevice;
 interface IAudioRecorder;
 [default] interface IAudioDecoder;
 
 [source] dispinterface _IAudioRecorderEvents;
 [default, source] dispinterface _IAudioDecoderEvents;
};
 
But, now? How can I code for this new design? I try to add a new
CONNECTION_POINT_ENTRY:
 
BEGIN_CONNECTION_POINT_MAP(CAudioDecoder)
 CONNECTION_POINT_ENTRY(__uuidof(_IAudioDecoderEvents))
 CONNECTION_POINT_ENTRY(__uuidof(_IAudioRecorderEvents))
END_CONNECTION_POINT_MAP()


You also need to derive from two proxies (should be named something like =
_IAudioDecoderEventsCP and _IAudioRecorderEventsCP). You probably =
already derive from one - just add the other.
--
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not =
necessarily a good idea. It is hard to be sure where they are going to =
land, and it could be dangerous sitting under them as they fly overhead. =
-- RFC 1925

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