54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//+---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1992 - 1996.
|
|
//
|
|
// File: ROSTMFIL.HXX
|
|
//
|
|
// Contents:
|
|
//
|
|
// Classes: Declaration for CReadOnlyStreamFile class
|
|
//
|
|
// Functions:
|
|
//
|
|
// History: 03-02-96 JoeS (Joe Souza) Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
class FAR CReadOnlyStreamFile : public CReadOnlyStreamDirect
|
|
{
|
|
public:
|
|
|
|
static HRESULT Create(LPSTR pszFileName, CReadOnlyStreamFile **ppCRoStm);
|
|
CReadOnlyStreamFile(LPSTR pszFileName, HANDLE handle);
|
|
virtual ~CReadOnlyStreamFile(void);
|
|
|
|
// *** IStream methods ***
|
|
STDMETHOD(Read) (THIS_ VOID HUGEP *pv, ULONG cb, ULONG FAR *pcbRead);
|
|
STDMETHOD(Seek) (THIS_ LARGE_INTEGER dlibMove, DWORD dwOrigin,
|
|
ULARGE_INTEGER FAR *plibNewPosition);
|
|
STDMETHOD(CopyTo) (THIS_ LPSTREAM pStm, ULARGE_INTEGER cb,
|
|
ULARGE_INTEGER FAR *pcbRead, ULARGE_INTEGER FAR *pcbWritten);
|
|
STDMETHOD(LockRegion) (THIS_ ULARGE_INTEGER libOffset,
|
|
ULARGE_INTEGER cb, DWORD dwLockType);
|
|
STDMETHOD(UnlockRegion) (THIS_ ULARGE_INTEGER libOffset,
|
|
ULARGE_INTEGER cb, DWORD dwLockType);
|
|
STDMETHOD(Stat) (THIS_ STATSTG FAR *pStatStg, DWORD grfStatFlag);
|
|
STDMETHOD(Clone) (THIS_ LPSTREAM FAR *ppStm);
|
|
|
|
void SetDataFullyAvailable()
|
|
{
|
|
_fDataFullyAvailable = TRUE;
|
|
}
|
|
|
|
private:
|
|
LPWSTR GetFileName();
|
|
|
|
private:
|
|
LPSTR _pszFileName;
|
|
HANDLE _hFileHandle;
|
|
BOOL _fDataFullyAvailable;
|
|
};
|
|
|
|
|