56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//***************************************************************************
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//
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// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
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//
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// EventProvider.H
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//
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// Purpose: Definition of EventProvider class
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//
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//***************************************************************************
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifndef _EVENT_PROVIDER_COMPILED_
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#define _EVENT_PROVIDER_COMPILED_
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#ifdef EVENT_PROVIDER_ENABLED
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#include "Provider.h"
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// class EventProvider
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// Encapsulation of the IWbemEventProvider interfaces
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class EventProvider : public Provider
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{
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public:
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EventProvider( const CHString& setName, LPCWSTR pszNameSpace = NULL );
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~EventProvider( void );
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virtual HRESULT ProvideEvents(MethodContext *pContext, long lFlags = 0L ) =0;
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// functions much like EnumerateInstances in Provider
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// use CreateNewInstance to create event instance
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// use Commit to send it on its merry way
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// overrides of the base class' pure virtuals, return WBEM_E_PROVIDER_NOT_CAPABLE
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// logic is that an event provider will not want to support them in the general case
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virtual HRESULT GetObject(CInstance *pInstance, long lFlags = 0L);
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virtual HRESULT EnumerateInstances(MethodContext *pMethodContext, long lFlags = 0L);
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// entry point for the framework's use. Do not override.
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HRESULT KickoffEvents( MethodContext *pContext, long lFlags =0L );
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protected:
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// flag validation
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virtual HRESULT ValidateProvideEventsFlags(long lFlags);
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virtual HRESULT ValidateQueryEventsFlags(long lFlags);
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private:
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};
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#endif //EVENT_PROVIDER_ENABLED
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#endif //_EVENT_PROVIDER_COMPILED_
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