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

#define PartSize 2*1024*1024             // 分块的大小2MB

int main(int argc,char * argv[])
{
    HANDLE dstFile;
    HANDLE hFileMap,hDstFileMap;
    DWORD  dwFileSize;
    LPVOID lpMapStartPos,lpNewFilePos;
    int  FileLen;
    char ext[256],destfilename[256];
    int i = 0;
    char *lpFileName = "01.flac";
    HANDLE hFile = CreateFile(lpFileName,
                              GENERIC_READ,
                              FILE_SHARE_READ | FILE_SHARE_WRITE,
                              NULL,
                              OPEN_EXISTING,
                              FILE_ATTRIBUTE_NORMAL,
                              NULL);

    if (hFile == INVALID_HANDLE_VALUE) {
        printf("打开原文件失败。\n");
        return FALSE;
    }
        dwFileSize = GetFileSize(hFile, NULL);
        hFileMap = CreateFileMapping(hFile,NULL,PAGE_READONLY,0,PartSize,NULL);
    if(hFileMap == NULL)
   {
      printf("创建原文件映射对象句柄失败:%d。\n",GetLastError());
      CloseHandle(hFile);
      return -1;
   }


    lpMapStartPos = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, i * PartSize, 0);
        if ( lpMapStartPos == NULL )
   {
        printf("%d\n.",i);
        printf("映射原文件到内存映射失败:%d。\n",GetLastError());
        return -1;
   }
  
    
    UnmapViewOfFile(lpMapStartPos);       //  撤销第一部分的映射
    
    // 第2部分的文件片段如何映射？

    i++;

    lpMapStartPos = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 0);
    if ( lpMapStartPos == NULL )
   {
       printf("映射原文件到内存映射失败:%d。\n",GetLastError());
       printf("%d\n",i);
       return -1;
   }

    UnmapViewOfFile(lpMapStartPos);
    CloseHandle(hFileMap);                //  关闭内存句柄
    CloseHandle(hFile);                   //  关闭文件句柄

}


【 在 javame (yimin) 的大作中提到: 】
: #define PartSize 2*1024*1024             // 分块的大小2MB
: hFileMap = CreateFileMapping(hFile,NULL,PAGE_READONLY,0,PartSize,NULL);
: lpMapStartPos = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, i*PartSize, PartSize);      // 增加的代码
: ...................
--
FROM 116.231.61.*