根据文件句柄，获取文件名

#include

#define BUFSIZE 512

BOOL GetFileNameFromHandle(HANDLE hFile) { BOOL bSuccess = FALSE; TCHAR pszFilename[MAX_PATH+1]; HANDLE hFileMap;

// Get the file size. DWORD dwFileSizeHi = 0; DWORD dwFileSizeLo = GetFileSize(hFile, &dwFileSizeHi;);

if( dwFileSizeLo == 0 && dwFileSizeHi == 0 ) { printf(“Cannot map a file with a length of zero.\n”); return FALSE; }

// Create a file mapping object. hFileMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 1, NULL);

if (hFileMap) { // Create a file mapping to get the file name. void* pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);

if (pMem)
{
  if (GetMappedFileName (GetCurrentProcess(),
                         pMem,
                         pszFilename,
                         MAX_PATH))
  {

    // Translate path with device name to drive letters.
    TCHAR szTemp[BUFSIZE];
    szTemp[0] = '\0';

    if (GetLogicalDriveStrings(BUFSIZE-1, szTemp))
    {
      TCHAR szName[MAX_PATH];
      TCHAR szDrive[3] = TEXT(" :");
      BOOL bFound = FALSE;
      TCHAR* p = szTemp;

      do
      {
        // Copy the drive letter to the template string
        *szDrive = *p;

        // Look up each device name
        if (QueryDosDevice(szDrive, szName, BUFSIZE))
        {
          UINT uNameLen = _tcslen(szName);

          if (uNameLen < MAX_PATH)
          {
            bFound = _tcsnicmp(pszFilename, szName,
                uNameLen) == 0;

            if (bFound)
            {
              // Reconstruct pszFilename using szTemp
              // Replace device path with DOS path
              TCHAR szTempFile[MAX_PATH];
              _stprintf(szTempFile,
                        TEXT("%s%s"),
                        szDrive,
                        pszFilename+uNameLen);
              _tcsncpy(pszFilename, szTempFile, MAX_PATH);
            }
          }
        }

        // Go to the next NULL character.
        while (*p++);
      } while (!bFound && *p); // end of string
    }
  }
  bSuccess = TRUE;
  UnmapViewOfFile(pMem);
}

CloseHandle(hFileMap);

} printf(“File name is %s\n”, pszFilename); return(bSuccess); }