Re: two instances of the same class, different vtables

From:

"Alexander Nickolov" <agnickolov@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Tue, 5 Sep 2006 14:35:41 -0700

Message-ID:

<eDs09MT0GHA.4920@TK2MSFTNGP06.phx.gbl>

Or when the same object implements two or more interfaces
derived from said interface. Classical example is IPersist when
an ActiveX Control implements IPersistsStreamInit, IPersistStorage
and IPersistPropertyBag. The client can get 3 different vtables
for IPersist.

--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================

"Igor Tandetnik" <itandetnik@mvps.org> wrote in message
news:ucQ9wYF0GHA.1568@TK2MSFTNGP03.phx.gbl...

"gilad" <giladv@yahoo.com> wrote in message
news:1157360660.786412.7190@m79g2000cwm.googlegroups.com

When will two instances of the same interface point to different
vtables?

When they are implemented by different coclasses.

What is the actual problem you are trying to solve?
--
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