# File::getFileIdentifier() result depends on current directory on Windows
**URL:** https://forum.juce.com/t/file-getfileidentifier-result-depends-on-current-directory-on-windows/33050
**Category:** General JUCE discussion
**Created:** [April 25, 2019, 4:37pm UTC](https://forum.juce.com/t/file-getfileidentifier-result-depends-on-current-directory-on-windows/33050 "2019-04-25T16:37:43Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@RolandMR](https://forum.juce.com/u/RolandMR)
#### Post date: [April 25, 2019, 4:37pm UTC](https://forum.juce.com/t/file-getfileidentifier-result-depends-on-current-directory-on-windows/33050/1 "2019-04-25T16:37:43Z")
Sample code:
```auto
File::findFileSystemRoots (roots);
File f = roots[0];
File::getSpecialLocation (File::userHomeDirectory).setAsCurrentWorkingDirectory();
int64 n1 = f.getFileIdentifier();
File::getSpecialLocation (File::userApplicationDataDirectory).setAsCurrentWorkingDirectory();
int64 n2 = f.getFileIdentifier();
jassert (n1 == n2);
```
Result:
```auto
n1 15481123719386479 __int64
n2 3377699721030766 __int64
```
Project: [https://github.com/FigBug/juce\_bugs/blob/master/FileIDs/Source/Main.cpp](https://github.com/FigBug/juce_bugs/blob/master/FileIDs/Source/Main.cpp)
---
### Author:  [@RolandMR](https://forum.juce.com/u/RolandMR)
#### Post date: [April 25, 2019, 4:43pm UTC](https://forum.juce.com/t/file-getfileidentifier-result-depends-on-current-directory-on-windows/33050/2 "2019-04-25T16:43:31Z")
Fixed code:
```auto
uint64 File::getFileIdentifier() const
{
uint64 result = 0;
String path = getFullPathName();
if (path.endsWith (":"))
path += "\\";
auto h = CreateFile (path.toWideCharPointer(),
GENERIC_READ, FILE_SHARE_READ, nullptr,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
if (h != INVALID_HANDLE_VALUE)
{
BY_HANDLE_FILE_INFORMATION info;
zerostruct (info);
if (GetFileInformationByHandle (h, &info))
result = (((uint64) info.nFileIndexHigh) << 32) | info.nFileIndexLow;
CloseHandle (h);
}
return result;
}
```
---
### Author:  [@t0m](https://forum.juce.com/u/t0m)
#### Post date: [April 29, 2019, 10:09am UTC](https://forum.juce.com/t/file-getfileidentifier-result-depends-on-current-directory-on-windows/33050/3 "2019-04-29T10:09:33Z")
Thank you for reporting.
>