public IOutStream,

public CMyUnknownImp

{

UInt64 _offset;

CMyComPtr<IOutStream> _stream;

public:

HRESULT Init(IOutStream *stream, UInt64 offset);

MY_UNKNOWN_IMP

STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);

STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);

STDMETHOD(SetSize)(Int64 newSize);