Re: Activex control containment message reflection

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Mon, 4 Sep 2006 15:20:18 -0400
Message-ID:
<ObKngcF0GHA.2288@TK2MSFTNGP05.phx.gbl>
<miikka.laakso@kaannos.com> wrote in message
news:1157353198.997411.22090@e3g2000cwe.googlegroups.com

I have created the ActiveX control with VS 2005 ATL ActiveX wizard, so
i don't have direct access to the control containers message pump.

Does ATL provide some way to access it directly? Or is the only way to
use hooks or overload the parents message procedure?


Why do you need to do this in the first place? It appears you have an
ActiveX control hosted in an ATL-based host. Surely the host written in
ATL knows it won't get anything interesting by sending WM_GETTEXT to
AxWin window it itself created.

Answering your question - no, I don't know of any way for the control to
intercept messages sent to its host, short of hooks and such. It sounds
dangerous to me to rely on the exact implementation details of the
host - what happens when your control is hosted on a VB form, or
something else not based on ATL?
--
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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