如何根据文件句柄获取文件名？

#include<windows.h>

#include<stdio.h>

#include<tchar.h>

#include<string.h>

#include<psapi.h>

#defineBUFSIZE512

BOOLGetFileNameFromHandle(HANDLEhFile)

{

BOOLbSuccess=FALSE;

TCHARpszFilename[MAX_PATH+1];

HANDLEhFileMap;

//Getthefilesize.

DWORDdwFileSizeHi=0;

DWORDdwFileSizeLo=GetFileSize(hFile,&dwFileSizeHi);

if(dwFileSizeLo==0&&dwFileSizeHi==0)

{

printf("Cannotmapafilewithalengthofzero./n");

returnFALSE;

}

//Createafilemappingobject.

hFileMap=CreateFileMapping(hFile,

NULL,

PAGE_READONLY,

0,

1,

NULL);

if(hFileMap)

{

//Createafilemappingtogetthefilename.

void*pMem=MapViewOfFile(hFileMap,FILE_MAP_READ,0,0,1);

if(pMem)

{

if(GetMappedFileName(GetCurrentProcess(),

pMem,

pszFilename,

MAX_PATH))

{

//Translatepathwithdevicenametodriveletters.

TCHARszTemp[BUFSIZE];

szTemp[0]='/0';

if(GetLogicalDriveStrings(BUFSIZE-1,szTemp))

{

TCHARszName[MAX_PATH];

TCHARszDrive[3]=TEXT(":");

BOOLbFound=FALSE;

TCHAR*p=szTemp;

do

{

//Copythedrivelettertothetemplatestring

*szDrive=*p;

//Lookupeachdevicename

if(QueryDosDevice(szDrive,szName,BUFSIZE))

{

UINTuNameLen=_tcslen(szName);

if(uNameLen<MAX_PATH)

{

bFound=_tcsnicmp(pszFilename,szName,

uNameLen)==0;

if(bFound)

{

//ReconstructpszFilenameusingszTemp

//ReplacedevicepathwithDOSpath

TCHARszTempFile[MAX_PATH];

_stprintf(szTempFile,

TEXT("%s%s"),

szDrive,

pszFilename+uNameLen);

_tcsncpy(pszFilename,szTempFile,MAX_PATH);

}

}

}

//GotothenextNULLcharacter.

while(*p++);

}while(!bFound&&*p);//endofstring

}

}

bSuccess=TRUE;

UnmapViewOfFile(pMem);

}

CloseHandle(hFileMap);

}

printf("Filenameis%s/n",pszFilename);

return(bSuccess);

}

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