85 lines
1.2 KiB
C
85 lines
1.2 KiB
C
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#ifndef _STREAM_H
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#define _STREAM_H
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class CStream
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{
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public:
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CStream ();
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virtual ~CStream (){};
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virtual inline BOOL
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bValid (VOID) CONST {
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return m_bValid;
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}
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virtual BOOL
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Reset (
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VOID);
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virtual BOOL
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GetTotalSize (
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PDWORD pdwSize) CONST;
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virtual BOOL
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SetPtr (
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DWORD dwPos) = 0;
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virtual BOOL
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Read (
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PBYTE pBuf,
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DWORD dwBufSize,
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PDWORD pdwSizeRead) = 0;
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protected:
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BOOL m_bValid;
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DWORD m_dwTotalSize;
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DWORD m_dwCurPos;
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};
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class CMemStream: public CStream
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{
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public:
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CMemStream (
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PBYTE pMem,
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DWORD dwTotalSize);
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virtual BOOL
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SetPtr (
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DWORD dwPos);
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virtual BOOL
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Read (
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PBYTE pBuf,
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DWORD dwBufSize,
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PDWORD pdwSizeRead);
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private:
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PBYTE m_pMem;
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};
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class CFileStream: public CStream
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{
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public:
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CFileStream (
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HANDLE hFile);
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virtual BOOL
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SetPtr (
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DWORD dwPos);
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virtual BOOL
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Read (
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PBYTE pBuf,
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DWORD dwBufSize,
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PDWORD pdwSizeRead);
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private:
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HANDLE m_hFile;
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};
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#endif
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