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56 lines
1.6 KiB
56 lines
1.6 KiB
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: filelkb.hxx
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//
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// Contents: IFileLockBytes definition
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//
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// Classes: IFileLockBytes
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//
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// History: 14-Jan-93 DrewB Created
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//
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//----------------------------------------------------------------------------
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#ifndef __FILELKB_HXX__
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#define __FILELKB_HXX__
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#define IID_IFileLockBytes IID_IDfReserved1
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/****** IFileLockBytes Interface ********************************************/
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#define LPFILELOCKBYTES IFileLockBytes FAR*
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#undef INTERFACE
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#define INTERFACE IFileLockBytes
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DECLARE_INTERFACE_(IFileLockBytes, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID FAR* ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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// *** IFileLockBytes methods ***
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STDMETHOD(SwitchToFile) (THIS_ OLECHAR const *lpstrFile,
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#ifdef LARGE_DOCFILE
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ULONGLONG ulCommitSize,
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#else
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ULONG ulCommitSize,
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#endif
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ULONG cbBuffer,
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LPVOID pvBuffer) PURE;
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STDMETHOD(FlushCache) (THIS) PURE;
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STDMETHOD(ReserveHandle)(THIS) PURE;
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// Optimizations
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STDMETHOD(GetLocksSupported)(THIS_ DWORD *pdwLockFlags) PURE;
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STDMETHOD(GetSize)(THIS_ ULARGE_INTEGER *puliSize) PURE;
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STDMETHOD_(ULONG, GetSectorSize) (THIS) PURE;
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STDMETHOD_(BOOL, IsEncryptedFile) (THIS) PURE;
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};
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#endif // #ifndef __FILELKB_HXX__
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