116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1994
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//
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// File: nullfilt.hxx
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//
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// Contents: CNullIFilter and CNullIFilterCF
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//
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// History: 23-Aug-1994 t-jeffc Created
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//
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//--------------------------------------------------------------------------
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#pragma once
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//+-------------------------------------------------------------------------
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//
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// Class: CNullIFilter
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//
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// Purpose:
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//
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// History:
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//
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//--------------------------------------------------------------------------
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extern "C" GUID CLSID_CNullIFilter;
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class CNullIFilter : public IFilter, public IPersistFile
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{
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public:
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CNullIFilter();
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//
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// From IUnknown
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//
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virtual SCODE STDMETHODCALLTYPE QueryInterface(REFIID riid, void * * ppvObject);
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virtual ULONG STDMETHODCALLTYPE AddRef();
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virtual ULONG STDMETHODCALLTYPE Release();
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//
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// From IFilter
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//
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virtual SCODE STDMETHODCALLTYPE Init( ULONG grfFlags,
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ULONG cAttributes,
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FULLPROPSPEC const * aAttributes,
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ULONG * pFlags );
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virtual SCODE STDMETHODCALLTYPE GetChunk( STAT_CHUNK * pStat);
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virtual SCODE STDMETHODCALLTYPE GetText( ULONG * pcwcBuffer,
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WCHAR * awcBuffer );
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virtual SCODE STDMETHODCALLTYPE GetValue( PROPVARIANT * * ppPropValue );
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virtual SCODE STDMETHODCALLTYPE BindRegion( FILTERREGION origPos,
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REFIID riid,
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void ** ppunk );
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//
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// From IPersistFile
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//
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virtual SCODE STDMETHODCALLTYPE GetClassID( CLSID * pClassID );
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virtual SCODE STDMETHODCALLTYPE IsDirty();
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virtual SCODE STDMETHODCALLTYPE Load( LPCWSTR pszFileName,
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DWORD dwMode);
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virtual SCODE STDMETHODCALLTYPE Save( LPCWSTR pszFileName,
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BOOL fRemember );
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virtual SCODE STDMETHODCALLTYPE SaveCompleted( LPCWSTR pszFileName );
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virtual SCODE STDMETHODCALLTYPE GetCurFile( LPWSTR * ppszFileName );
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private:
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~CNullIFilter();
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long _cRefs;
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WCHAR * _pwszFileName;
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};
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//+-------------------------------------------------------------------------
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//
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// Class: CNullIFilterCF
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//
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// Purpose:
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//
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// History:
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//
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//--------------------------------------------------------------------------
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class CNullIFilterCF : public IClassFactory
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{
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public:
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CNullIFilterCF();
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//
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// From IUnknown
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//
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virtual SCODE STDMETHODCALLTYPE QueryInterface( REFIID riid,
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void ** ppvObject);
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virtual ULONG STDMETHODCALLTYPE AddRef();
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virtual ULONG STDMETHODCALLTYPE Release();
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//
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// From IClassFactory
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//
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virtual SCODE STDMETHODCALLTYPE CreateInstance( IUnknown * pUnkOuter,
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REFIID riid, void * * ppvObject );
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virtual SCODE STDMETHODCALLTYPE LockServer( BOOL fLock );
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protected:
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~CNullIFilterCF();
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long _cRefs;
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};
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