mmfile.h

来自「用C++完成一个学生信息管理系统 要求有界面」· C头文件 代码 · 共 34 行

// MMFile.h: interface for the CMMFile class.
//
//////////////////////////////////////////////////////////////////////

#ifndef __MMFILE_H__
#define __MMFILE_H__
class CMMFile
{
public:
	CMMFile(BOOL autoDelete=FALSE);
	virtual ~CMMFile();
	BOOL WriteToFile(LPVOID pBuffer,DWORD dwSize);
	BOOL WriteToFile(LPVOID pBuffer,DWORD dwOffsetAddr,DWORD dwSize);
	BOOL ReadFromFile(LPVOID pBuffer,DWORD dwSize);
	BOOL ReadFromFile(LPVOID pBuffer,DWORD dwOffsetAddr,DWORD dwSize);
	BOOL OpenMem(LPCTSTR szFileName, LPCTSTR szMapName, DWORD dwSize=0);
	BOOL OpenNewMem(LPCTSTR szFileName, LPCTSTR szMapName, DWORD dwSize=0);
	void Destroy();
	BOOL CloseMem();
	void GetSysAllocationGranularity(DWORD* pAllocationGranularity);
	DWORD GetSize();
protected:
	HANDLE	m_hFile;
	HANDLE	m_hFileMap;
	LPVOID	m_lpFileMapBuffer;
	BOOL    m_autoDelete;

	CString m_pFileName;
	CString m_pMapName;
	DWORD	m_dwSize;
};

#endif // __MMFILE_H__