Re: Oleaut32.dll needs/doesn't need type library??

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Fri, 27 Jun 2008 15:14:35 -0400
Message-ID:
<eV2iEsI2IHA.2384@TK2MSFTNGP04.phx.gbl>
sawer <sawer@discussions.microsoft.com> wrote:

Is "either a dual interface derived from IDispatch or a custom
automation" means :

"If you want oleaut32 to marshal either a dual interface derived from
IDispatch or a custom automation..."
or
"If you want oleaut32 to marshal an interface other than a dual
interface derived from IDispatch or a custom automation-compatible
interface"


The former. oleaut32 only knows how to marshal dispinterfaces (for which
it doesn't need a type library), dual interfaces and custom automation
interfaces (for the last two it needs a type library). For custom
non-automation interfaces you need to build proxy/stub DLL.

I couldn't understand what you meant because I don't fully understand
what late and early binding is.


Late binding means calling methods via IDispatch::Invoke. Early binding
is calling methods directly.
--
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    Igor Tandetnik

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