78 lines
2 KiB
C++
78 lines
2 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1996.
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//
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// File: fileilb.hxx
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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//----------------------------------------------------------------------------
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#ifndef __FILEILB_HXX__
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#define __FILEILB_HXX__
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#include "storage.h"
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#define ILB_DELETEONERR 1
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#define ILB_DELETEONRELEASE 2
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class CFileILB: public ILockBytes
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{
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public:
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID FAR* ppvObj);
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STDMETHOD_(ULONG,AddRef) (THIS);
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STDMETHOD_(ULONG,Release) (THIS);
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// *** ILockBytes methods ***
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STDMETHOD(ReadAt) (THIS_ ULARGE_INTEGER ulOffset,
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VOID HUGEP *pv,
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ULONG cb,
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ULONG FAR *pcbRead);
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STDMETHOD(WriteAt) (THIS_ ULARGE_INTEGER ulOffset,
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VOID const HUGEP *pv,
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ULONG cb,
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ULONG FAR *pcbWritten);
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STDMETHOD(Flush) (THIS);
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STDMETHOD(SetSize) (THIS_ ULARGE_INTEGER cb);
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STDMETHOD(LockRegion) (THIS_ ULARGE_INTEGER libOffset,
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ULARGE_INTEGER cb,
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DWORD dwLockType);
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STDMETHOD(UnlockRegion) (THIS_ ULARGE_INTEGER libOffset,
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ULARGE_INTEGER cb,
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DWORD dwLockType);
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STDMETHOD(Stat) (THIS_ STATSTG FAR *pstatstg, DWORD grfStatFlag);
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CFileILB(const TCHAR *pszName,
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DWORD grfMode,
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BOOL fOpenFile=TRUE);
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~CFileILB();
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SCODE Open(DWORD grfMode);
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SCODE Create(DWORD grfMode);
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ULONG ReleaseOnError(void); // same as release, but it will not delete
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// non-scratch or newly created files
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private:
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FILE * _f;
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ULONG _ulRef;
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char *_pszName; // we always use ANSI char when dealing with
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// I/O
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unsigned short _fDelete;
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};
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#endif // #ifndef __FILEILB_HXX__
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