MFC Documentation

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MFC
Class CSharedFile

CObject
   |
   +--CFile
         |
         +--CMemFile
               |
               +--CSharedFile

in AFXADV.H

class CSharedFile
extends CMemFile

Shared file support

Field Summary
`protected BOOL`	`m_bAllowGrow`
`protected HGLOBAL`	`m_hGlobalMemory`
`protected UINT`	`m_nAllocFlags`

Fields inherited from class CMemFile

classCMemFile, m_nGrowBytes, m_nPosition, m_nBufferSize, m_nFileSize, m_lpBuffer, m_bAutoDelete

Fields inherited from class CFile

classCFile, m_hFile, m_bCloseOnDelete, m_strFileName

Fields inherited from class CObject

classCObject

Constructor Summary
`CSharedFile( UINT nAllocFlags = GMEM_DDESHARE\| GMEM_MOVEABLE, UINT nGrowBytes = 4096 )`
`virtual ~CSharedFile()`

Method Summary
`protected virtual BYTE*`	`Alloc( DWORD nBytes )`
`HGLOBAL`	`Detach()`
`protected virtual void`	`Free( BYTE* lpMem )`
`protected virtual BYTE*`	`Realloc( BYTE* lpMem, DWORD nBytes )`
`void`	`SetHandle( HGLOBAL hGlobalMemory, BOOL bAllowGrow = TRUE )`

Methods inherited from class CMemFile

GetRuntimeClass, Attach, Detach, Alloc, Realloc, Memcpy, Free, GrowFile, GetPosition, GetStatus, Seek, SetLength, Read, Write, Abort, Flush, Close, GetBufferPtr, Duplicate, LockRange, UnlockRange

Methods inherited from class CFile

GetRuntimeClass, HFILE, GetPosition, GetStatus, GetFileName, GetFileTitle, GetFilePath, SetFilePath, Open, Rename, Remove, GetStatus, SetStatus, SeekToEnd, SeekToBegin, ReadHuge, WriteHuge, Duplicate, Seek, SetLength, GetLength, Read, Write, LockRange, UnlockRange, Abort, Flush, Close, GetBufferPtr

Methods inherited from class CObject

GetRuntimeClass, new, new, delete, IsSerializable, IsKindOf, Serialize

Field Detail

m_bAllowGrow

protected BOOL m_bAllowGrow;

m_hGlobalMemory

protected HGLOBAL m_hGlobalMemory;

m_nAllocFlags

protected UINT m_nAllocFlags;

Constructor Detail

CSharedFile

public CSharedFile( UINT nAllocFlags = GMEM_DDESHARE| GMEM_MOVEABLE, UINT nGrowBytes = 4096 );

~CSharedFile

public virtual ~CSharedFile();

Method Detail

Alloc

protected virtual BYTE* Alloc( DWORD nBytes );

Detach

public HGLOBAL Detach();

Free

protected virtual void Free( BYTE* lpMem );

Realloc

protected virtual BYTE* Realloc( BYTE* lpMem, DWORD nBytes );

SetHandle

public void SetHandle( HGLOBAL hGlobalMemory, BOOL bAllowGrow = TRUE );