215 lines
4.9 KiB
C++
215 lines
4.9 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1997.
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//
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// File: statprop.hxx
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//
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// Contents: CStatPropertyStorage
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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: CStatPropertyStorage
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//
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// Purpose: IPropertyStorage derivative that provides read-only access to
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// the stat properties of a document.
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//
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//----------------------------------------------------------------------------
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class CStatPropertyStorage : public IPropertyStorage
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{
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public:
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//
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// Constructor and Destructor
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//
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CStatPropertyStorage( THIS_ HANDLE FileHandle, unsigned cPathLength = MAX_PATH );
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//
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// IUnknown methods.
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//
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STDMETHOD(QueryInterface) (THIS_ REFIID riid,LPVOID *ppiuk );
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STDMETHOD_(ULONG, AddRef) (THIS);
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STDMETHOD_(ULONG, Release) (THIS);
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//
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// IPropertyStorage methods.
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//
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STDMETHOD(ReadMultiple) ( THIS_ ULONG cpspec,
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const PROPSPEC __RPC_FAR rgpspec[ ],
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PROPVARIANT __RPC_FAR rgpropvar[ ] );
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STDMETHOD(WriteMultiple) ( THIS_ ULONG cpspec,
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const PROPSPEC __RPC_FAR rgpspec[ ],
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const PROPVARIANT __RPC_FAR rgpropvar[ ],
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PROPID propidNameFirst )
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{ return E_NOTIMPL; }
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STDMETHOD(DeleteMultiple) ( THIS_ ULONG cpspec,
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const PROPSPEC __RPC_FAR rgpspec[ ] )
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{ return E_NOTIMPL; }
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STDMETHOD(ReadPropertyNames) ( THIS_ ULONG cpropid,
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const PROPID __RPC_FAR rgpropid[ ],
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LPOLESTR __RPC_FAR rglpwstrName[ ] )
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{ return E_NOTIMPL; }
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STDMETHOD(WritePropertyNames) ( THIS_ ULONG cpropid,
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const PROPID __RPC_FAR rgpropid[ ],
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const LPOLESTR __RPC_FAR rglpwstrName[ ] )
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{ return E_NOTIMPL; }
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STDMETHOD(DeletePropertyNames) ( THIS_ ULONG cpropid,
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const PROPID __RPC_FAR rgpropid[ ] )
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{ return E_NOTIMPL; }
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STDMETHOD(Commit) ( THIS_ DWORD grfCommitFlags )
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{ return E_NOTIMPL; }
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STDMETHOD(Revert) ( THIS )
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{ return E_NOTIMPL; }
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STDMETHOD(Enum) ( THIS_ IEnumSTATPROPSTG __RPC_FAR *__RPC_FAR *ppenum );
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STDMETHOD(SetTimes) ( THIS_ const FILETIME __RPC_FAR *pctime,
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const FILETIME __RPC_FAR *patime,
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const FILETIME __RPC_FAR *pmtime )
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{ return E_NOTIMPL; }
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STDMETHOD(SetClass) ( THIS_ REFCLSID clsid )
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{ return E_NOTIMPL; }
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STDMETHOD(Stat) ( THIS_ STATPROPSETSTG __RPC_FAR *pstatpsstg)
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{ return E_NOTIMPL; }
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protected:
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//
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// Hidden destructor so that only we can delete the instance
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// based on IUnknown control
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//
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virtual ~CStatPropertyStorage() { };
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private:
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//
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// Buffer containing Basic Info
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//
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FILE_ALL_INFORMATION & GetInfo()
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{
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return * (FILE_ALL_INFORMATION *) _xBuf.Get();
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//return _infobuf;
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}
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BOOL IsNTFS()
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{
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return (0 != GetInfo().BasicInformation.ChangeTime.QuadPart);
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}
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XGrowable<LONGLONG> _xBuf;
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//
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// IUnknown reference count.
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//
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LONG _RefCount;
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//
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// File name pointer into above buffer
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//
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LPWSTR _FileName;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CStatPropertyEnum
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//
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// Purpose: IEnumSTATPROPSTG enumerator
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//
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//----------------------------------------------------------------------------
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class CStatPropertyEnum : public IEnumSTATPROPSTG
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{
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public:
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//
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// Constructor and Destructor
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//
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CStatPropertyEnum( BOOL fNTFS )
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: _RefCount( 1 ),
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_Index( fNTFS ? 0 : 1 )
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{};
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//
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// IUnknown methods.
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//
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STDMETHOD(QueryInterface) (THIS_ REFIID riid,LPVOID *ppiuk );
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STDMETHOD_(ULONG, AddRef) (THIS);
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STDMETHOD_(ULONG, Release) (THIS);
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//
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// IEnumSTATPROPSTG methods.
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//
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STDMETHOD(Next) ( THIS_ ULONG celt,
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STATPROPSTG __RPC_FAR *rgelt,
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ULONG __RPC_FAR *pceltFetched );
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STDMETHOD(Skip) ( THIS_ ULONG celt )
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{ _Index += celt; return S_OK; }
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STDMETHOD(Reset) ( THIS )
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{ _Index = 0; return S_OK; }
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STDMETHOD(Clone) ( IEnumSTATPROPSTG __RPC_FAR *__RPC_FAR *ppenum )
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{ return E_NOTIMPL; }
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protected:
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//
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// Hidden destructor so that only we can delete the instance
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// based on IUnknown control
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//
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virtual ~CStatPropertyEnum() { }
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private:
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//
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// IUnknown reference count.
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//
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LONG _RefCount;
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//
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// Index in state table of property retrieval.
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//
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LONG _Index;
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};
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