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Neohapsis > Archives > MS DCOM Discussion> 2002-q2

From: Vinoth Kumar B (bvkumarANZ.COM)
Date: Thu May 23 2002 - 01:47:03 CDT

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Hi All,
I have solved the problem by converting to IDispatch
Interface....But i wanted to know the reason why it is not working with
IUnknown...Plz let me know if any one solved this problem...Sorry for
troubling u all...

Vinoth

-----Original Message-----
From: Jai Kishore [mailto:jkishoreQUARK.CO.IN]
Sent: Thursday, May 23, 2002 11:04 AM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: No such Interface supported error

Hey Vinoth,
I don't think the COM_INETRFACE_ENTRY2 stuff is necessary.
You can successfully do a QI without it, which is the actual job of the
MACRO.

So change it and try with the solution.

Jai

-----Original Message-----
From: Vinoth Kumar B [mailto:bvkumarANZ.COM]
Sent: Thursday, May 23, 2002 10:38 AM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: No such Interface supported error

Sorry...this is the correct one...

         -----Original Message-----
        From: Vinoth Kumar B
        Sent: Thursday, May 23, 2002 10:23 AM
        To: 'DCOMDISCUSS.MICROSOFT.COM'
        Subject: No such Interface supported error

Plz have a look and let me know if any problem is there....

// ChatBrokerObj.h : Declaration of the CChatBrokerObj

#ifndef __CHATBROKEROBJ_H_
#define __CHATBROKEROBJ_H_

#include "resource.h" // main symbols

////////////////////////////////////////////////////////////////////////////
/
        // CChatBrokerObj
        class ATL_NO_VTABLE CChatBrokerObj :
                public CComObjectRootEx<CComMultiThreadModel>,
                public CComCoClass<CChatBrokerObj, &CLSID_ChatBrokerObj>,
                public ISupportErrorInfo,
                public IRegisterChatServer,
                public IDiscussions
        {
        public:
                DECLARE_CLASSFACTORY_SINGLETON(CChatBrokerObj);
                CChatBrokerObj()
                {
                }

DECLARE_REGISTRY_RESOURCEID(IDR_CHATBROKEROBJ)

DECLARE_PROTECT_FINAL_CONSTRUCT()

        BEGIN_COM_MAP(CChatBrokerObj)
                COM_INTERFACE_ENTRY(IDiscussions)
                COM_INTERFACE_ENTRY(IRegisterChatServer)
                COM_INTERFACE_ENTRY2(IUnknown,IRegisterChatServer)
                COM_INTERFACE_ENTRY(ISupportErrorInfo)
        END_COM_MAP()

// ISupportsErrorInfo
STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid);

        // IRegisterChatServer
        public:
                STDMETHOD(UnRegister)(/*[in,string]*/ wchar_t*
pwszDiscussion);
                STDMETHOD(Register)(/*[in]*/ IUnknown* pChatServer,
/*[in,string]*/ wchar_t* pwszDiscussion );
        //IDiscussions
        public:
                STDMETHOD(GetDiscussionList)(/*[out,string]*/ wchar_t**
ppwszDiscussionList);
                STDMETHOD(GetChatServer)(/*[in,string]*/ wchar_t*
pwszDiscussion,/*[out]*/ IUnknown** ppUnk);
        };
        #endif //__CHATBROKEROBJ_H_

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