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//////////////////////////////////////////////////////////////////////////////
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//<2F>ļ<EFBFBD> MemAlloc.h
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//<2F><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>:
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//
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д: 2005-12-07
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#define ALLOC_MODE_GlobalAlloc 1 //ʹ<><CAB9>GlobalAlloc<6F><63><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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#define ALLOC_MODE_VirtualAlloc 2 //ʹ<><CAB9>VirtualAlloc<6F><63><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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#define ALLOC_MODE_MemMapping 3 //ʹ<><CAB9><EFBFBD>ڴ<EFBFBD>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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#define ALLOC_MODE_malloc 4 //ʹ<><CAB9>malloc<6F><63><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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#include "FileMapping.h"
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class CMemAlloc
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{
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public:
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CMemAlloc(void);
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virtual ~CMemAlloc(void);
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BOOL AutoAlloc(UINT nMemSize); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Զ<EFBFBD>ѡ<EFBFBD><D1A1>һ<EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD>ɹ<EFBFBD>ʱ<EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
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BOOL Alloc(UINT nMemSize, DWORD nMode); //<2F>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>
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BOOL ReAlloc(UINT nMemSize); //<2F>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void Empty(void); //<2F>ڴ<EFBFBD><DAB4>ͷ<EFBFBD>
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BOOL IsEmpty(void);
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UINT GetSize(void);
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void* MemoryLock(void);
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void MemoryUnlock(void);
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HANDLE GetMappingHandle(void);
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DWORD GetAllocMode(void);
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HBITMAP CreateBitmap(CSize csImageSize, int nBPP, BOOL bAutoAlloc); //bAutoAlloc=TRUEʱ,<2C>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>AutoAlloc<6F><63><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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protected:
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void Free(void); //<2F>ڴ<EFBFBD><DAB4>ͷ<EFBFBD>
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UINT m_nSize; //<2F>ڴ<EFBFBD><DAB4><EFBFBD>С
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HANDLE m_hHandle; //<2F>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>
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LPVOID m_pMemory; //<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>GetMemPointerʱ<72>Ų<EFBFBD>Ϊ<EFBFBD><CEAA>
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DWORD m_nAllocMode;
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//<2F><>Ϊ<EFBFBD><CEAA><EFBFBD>ڴ<EFBFBD>ӳ<EFBFBD><D3B3>
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CFileMapping* CreateMemMapping(LPCTSTR lpMappingName, SIZE_T nMappingSize);
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CFileMapping* m_pMemMapping;
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};
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