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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
#ifndef __FSTREAM_H_INCLUDED__
#define __FSTREAM_H_INCLUDED__
#include <objidl.h>
class CFileStream : public IStream
{
public:
CFileStream();
virtual ~CFileStream();
HRESULT OpenForRead(LPCWSTR wzFilePath);
HRESULT OpenForWrite(LPCWSTR wzFilePath);
// IUnknown methods:
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObj);
// ISequentialStream methods:
STDMETHODIMP Read(void *pv, ULONG cb, ULONG *pcbRead);
STDMETHODIMP Write(void const *pv, ULONG cb, ULONG *pcbWritten);
// IStream methods:
STDMETHODIMP Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition);
STDMETHODIMP SetSize(ULARGE_INTEGER libNewSize);
STDMETHODIMP CopyTo(IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten);
STDMETHODIMP Commit(DWORD grfCommitFlags);
STDMETHODIMP Revert();
STDMETHODIMP LockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
STDMETHODIMP UnlockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
STDMETHODIMP Stat(STATSTG *pstatstg, DWORD grfStatFlag);
STDMETHODIMP Clone(IStream **ppIStream);
private:
BOOL Close();
private:
LONG _cRef;
HANDLE _hFile;
};
#endif
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