[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'sysutils' (#rtl)

# ExpandUNCFileName

Expand a relative filename to an absolute UNC filename.

## Declaration

Source position: finah.inc line 31

`function ExpandUNCFileName(`
`const FileName: UNICODESTRING`
`):UNICODESTRING; function ExpandUNCFileName(`
`const FileName: RAWBYTESTRING`
`):RAWBYTESTRING;`

## Description

ExpandUNCFileName runs ExpandFileName on FileName and then attempts to replace the drive letter by the name of a shared disk.

## Errors

If an unexpected error occurs while determining the name of the shared disk, an empty string is returned.

## See also

ExpandFileName |  | Expand a relative filename to an absolute filename.
ExtractFileName |  | Extract the filename part from a full path filename.
ExtractFilePath |  | Extract the path from a filename.
ExtractFileDir |  | Extract the drive and directory part of a filename.
ExtractFileDrive |  | Extract the drive part from a filename.
ExtractFileExt |  | Return the extension from a filename.
ExtractRelativePath |  | Extract a relative path from a filename, given a base directory.