Re: non-creatable ATL object using AtlReportError

From:

"Alexander Nickolov" <agnickolov@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Thu, 22 Mar 2007 12:35:41 -0700

Message-ID:

<e#XuHlLbHHA.2188@TK2MSFTNGP04.phx.gbl>

You are supposed to create a coclass in the type library and add
the [noncreatable] keyword. Then use its CLSID or derive from
CComCoClass and use its Error method instead of AtlReportError.

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

"John" <John@discussions.microsoft.com> wrote in message
news:E5397188-8FAF-4751-9DFA-BED2A7E106AC@microsoft.com...

I have an ATL object that is non-creatable, I removed the coclass from the
library block, CComCoClass from the base class, added DECLARE_NO_REGISTRY
and
removed the OBJECT_ENTRY_AUTO macro.

I use AtlReportError function within this object and it now complains that
there is no CLSID for the object (obviously). I need the source
information
to give a more detailed explanation of what failed.

Is there a way to get a CLSID generated and registered but not have it
visible from it's client? This object needs to be a read-only property
from
the containing class and I don't want the class "visible" from the client.

Or is one better off creating a custom version of the AtlSetErrorInfo
function passing a source string instead of the CLSID.