File Map Study

CString strfile=_T("C://test//test.txt"); HANDLE hFile=CreateFile(strfile,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL); HANDLE hMapfile=CreateFileMapping(hFile,NULL,PAGE_READWRITE,0,1024*64,NULL); LPVOID pBuf=MapViewOfFile(hMapfile,FILE_MAP_READ|FILE_MAP_WRITE,0,0,64*1024); CString content=_T("this is just for a test 風"); CopyMemory(pBuf,content,content.GetLength()*2); UnmapViewOfFile(pBuf); CloseHandle(hMapfile); CloseHandle(hFile);