内存映射文件，这样弄不知行不行？解决办法

内存映射文件，这样弄不知行不行？

HANDLE handle=CreateFileMapping((HANDLE)-1,0,PAGE_READWRITE,0,1024*1024*256,0);
LPVOID px=MapViewOfFile(handle,FILE_MAP_ALL_ACCESS,0,1024*64,0);

[解决办法]
报错，无效句柄
[解决办法]

C/C++ code

#include <windows.h>#include <stdio.h>#include <conio.h>#define BUF_SIZE 256TCHAR szName[]=TEXT("Global\\MyFileMappingObject");TCHAR szMsg[]=TEXT("Message from first process");int main(){   HANDLE hMapFile;   LPCTSTR pBuf;   hMapFile = CreateFileMapping(                 INVALID_HANDLE_VALUE,    // use paging file                 NULL,                    // default security                  PAGE_READWRITE,          // read/write access                 0,                       // max. object size                  BUF_SIZE,                // buffer size                   szName);                 // 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());       return 2;   }      CopyMemory((PVOID)pBuf, szMsg, strlen(szMsg));   _getch();   UnmapViewOfFile(pBuf);   CloseHandle(hMapFile);   return 0;}