46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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//***************************************************************************
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//
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// (c) 1999-2001 by Microsoft Corp. All Rights Reserved.
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//
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// seqstream.h
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//
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// cvadai 6-May-1999 created.
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//
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//***************************************************************************
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#ifndef __SEQSTREAM_H_
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#define __SEQSTREAM_H_
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class CSeqStream : public ISequentialStream
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{
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public:
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//Constructors
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CSeqStream();
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virtual ~CSeqStream();
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virtual BOOL Seek(ULONG iPos);
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virtual BOOL Clear();
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virtual BOOL CompareData(void* pBuffer);
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virtual ULONG Length() { return m_cBufSize; };
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virtual operator void* const() { return m_pBuffer; };
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppv);
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STDMETHODIMP Read(
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/* [out] */ void __RPC_FAR *pv,
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/* [in] */ ULONG cb,
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/* [out] */ ULONG __RPC_FAR *pcbRead);
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STDMETHODIMP Write(
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/* [in] */ const void __RPC_FAR *pv,
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/* [in] */ ULONG cb,
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/* [out]*/ ULONG __RPC_FAR *pcbWritten);
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protected:
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//Data
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private:
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ULONG m_cRef; // reference count
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void* m_pBuffer; // buffer
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ULONG m_cBufSize; // buffer size
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ULONG m_iPos; // current index position in the buffer
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};
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#endif
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