Re: Retrieving a long array from an IDispatch pointer

From:
"Alexander Nickolov" <agnickolov@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Tue, 25 Jul 2006 16:30:42 -0700
Message-ID:
<#uJkZJEsGHA.1288@TK2MSFTNGP02.phx.gbl>
Yes, as I stated in my previous reply...

--
=====================================
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:%23HNWVB%23rGHA.696@TK2MSFTNGP02.phx.gbl...

"Dave Moran" <dmoran@nospam.nospam> wrote in message
news:A0B9AA43-94A9-4B2C-B963-8EC02FC7F41B@microsoft.com

I'm not so sure that it's a VB collection anymore. I just tried the
following code and the QI fails. Am I doing something stupid?

   // From IUnknown interface, we can query to get the EnumVARIANT
   interface IEnumVARIANT *pEnum;
   HRESULT hr =
vntCollection.punkVal->QueryInterface(IID_IEnumVARIANT,(void**)&pEnum);


You don't query for IEnumVARIANT directly off the collection. You need to
retrieve a property with the special DISPID of DISPID_NEWENUM. A value of
this property is an IUnknown pointer that you query for IEnumVARIANT.
--
With best wishes,
   Igor Tandetnik

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