Re: can event handler call event source passed as connection point parameter?

"Alexander Nickolov" <>
Tue, 3 Oct 2006 09:26:24 -0700
This is a pure dispinterface, so DispInvoke is not involved.
What you get is the client's implementation of IDispatch for
the sink (for example IDispEvent[Simple]Impl). My point was
that the VARIANT argument only contains IDispatch* after
marshaling. If this dispatching layer does QI afterwards is
another matter. Apparently in the OP's case this translation
layer doesn't do that.

Alexander Nickolov
Microsoft MVP [VC], MCSD

"Igor Tandetnik" <> wrote in message

"Alexander Nickolov" <> wrote in message

IServer is only a convenience in the type library and doesn't
happen in practice. What you get is IDispatch*, which after
marshaling is _only_ IDispatch* - no extra methods in the
vtable. You need to QI to get a full-fledged IServer vtable.

Shouldn't DispInvoke query for IServer if the type info says that's what
the parameter should be?
With best wishes,
   Igor Tandetnik

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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
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