共享内存（内存映射）

来源：互联网发布：有关网络暴力的视频编辑：程序博客网时间：2024/05/17 06:48

TCHAR szName[MAX_PATH] = _T("2010ShareMem");//首先试图打开一个命名的内存映射文件对象m_hMap = ::OpenFileMapping(FILE_MAP_ALL_ACCESS, 0, szName);if (m_hMap == NULL){m_hMap = ::CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, MAX_PATH * sizeof(TCHAR), szName);}

写入：

TCHAR szName[MAX_PATH] = _T("2010ShareMem");LPVOID pBuffer;//首先试图打开一个命名的内存映射文件对象HANDLE hMap = ::OpenFileMapping(FILE_MAP_ALL_ACCESS, 0, szName);if (hMap != NULL){pBuffer = ::MapViewOfFile(hMap, FILE_MAP_ALL_ACCESS, 0, 0, 0);GetDlgItem(IDC_EDIT1)->GetWindowText((TCHAR*)pBuffer, MAX_PATH);::UnmapViewOfFile(pBuffer);::CloseHandle(hMap);}

读取：

TCHAR szName[MAX_PATH] = _T("2010ShareMem");LPVOID pBuffer;//首先试图打开一个命名的内存映射文件对象HANDLE hMap = ::OpenFileMapping(FILE_MAP_ALL_ACCESS, 0, szName);if (hMap != NULL){pBuffer = ::MapViewOfFile(hMap, FILE_MAP_ALL_ACCESS, 0, 0, 0);GetDlgItem(IDC_EDIT2)->SetWindowText((TCHAR*)pBuffer);::UnmapViewOfFile(pBuffer);::CloseHandle(hMap);}