Source code of Windows XP (NT5)
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40 lines
1.6 KiB

#ifndef _STREAM_H_
#define _STREAM_H_
class CMemStream : public IStream {
public:
STDMETHOD (QueryInterface)(REFIID riid, void **ppvObj);
STDMETHOD_(ULONG, AddRef)();
STDMETHOD_(ULONG, Release)();
STDMETHOD (Read)(void *pv, ULONG cb, ULONG *pcbRead);
STDMETHOD (Write)(void const *pv, ULONG cb, ULONG *pcbWritten);
STDMETHOD (Seek)(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition);
STDMETHOD (SetSize)(ULARGE_INTEGER libNewSize);
STDMETHOD (CopyTo)(IStream *, ULARGE_INTEGER, ULARGE_INTEGER *, ULARGE_INTEGER *);
STDMETHOD (Commit)(DWORD);
STDMETHOD (Revert)();
STDMETHOD (LockRegion)(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);
STDMETHOD (UnlockRegion)(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);
STDMETHOD (Stat)(STATSTG *, DWORD);
STDMETHOD (Clone)(IStream **);
LPBYTE GrowBuffer(ULONG);
private:
BOOL WriteToReg();
public:
UINT cRef; // Reference count
LPBYTE pBuf; // Buffer pointer
UINT cbAlloc; // The allocated size of the buffer
UINT cbData; // The used size of the buffer
UINT iSeek; // Where we are in the buffer.
DWORD grfMode; // mode used at creation (for Stat, and to enforce)
// Extra variables that are used for loading and saving to ini files.
HKEY hkey; // Key for writing to registry.
BITBOOL fDontCloseKey; // if caller passes in a key
TCHAR szValue[1]; // for reg stream
};
#endif /* _STREAM_H_ */