Windows编程怎么创建共享内存

请参考以下代码示例，使用Visual C++编写：

#include <stdio.h>
#include <windows.h>

#define BUF_SIZE 255
#define FILE_MAP_NAME "ShareMem"

int main()
{
HANDLE hMapFile;
LPCTSTR pBuf;
char szMsg[BUF_SIZE];

hMapFile = CreateFileMapping(
INVALID_HANDLE_VALUE, // use paging file
NULL, // default security
PAGE_READWRITE, // read/write access
0, // maximum object size (high-order DWORD)
BUF_SIZE, // maximum object size (low-order DWORD)
FILE_MAP_NAME); // name of mapping object

if (hMapFile == NULL)
{
printf("Could not create file mapping object (%d).\n", GetLastError());
return 1;
}

pBuf = (LPTSTR) MapViewOfFile(hMapFile, // handle to map object
FILE_MAP_ALL_ACCESS, // read/write permission
0,
0,
BUF_SIZE);

if (pBuf == NULL)
{
printf("Could not map view of file (%d).\n", GetLastError());

CloseHandle(hMapFile);

return 1;
}

printf("Enter message: ");
fgets(szMsg, BUF_SIZE, stdin);

CopyMemory((PVOID)pBuf, szMsg, (strlen(szMsg) + 1) * sizeof(TCHAR));

printf("Message written to memory: %s", pBuf);

UnmapViewOfFile(pBuf);

CloseHandle(hMapFile);

return 0;
}