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

# ExpandFileName

Expand a relative filename to an absolute filename.

## Declaration

Source position: finah.inc line 27

`function ExpandFileName(`
`const FileName: string`
`):string;`

## Description

ExpandFileName expands the filename to an absolute filename. It changes all directory separator characters to the one appropriate for the system first.

## Errors

None.

## See also

ExpandFileNameCase |  | Expand a filename entered as case insensitive to the full path as stored on the disk.
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.

## Example

    Program Example33;

    { This program demonstrates the ExpandFileName function }

    Uses sysutils;

    Procedure Testit (F : String);

    begin
      Writeln (F,' expands to : ',ExpandFileName(F));
    end;

    Begin
      Testit('ex33.pp');
      Testit(ParamStr(0));
      Testit('/pp/bin/win32/ppc386');
      Testit('\pp\bin\win32\ppc386');
      Testit('.');
    End.

Documentation generated on: Feb 26 2014