SysUtils.ExtractFileExt Function

Returns the extension portions of a file name.

Pascal

function ExtractFileExt(const FileName: string): string; overload;

C++

AnsiString ExtractFileExt(const AnsiString FileName);

File

SysUtils

Description

Use ExtractFileExt to obtain the extension from a file name. For example, the following code returns the extension of the file name specified by a variable named MyFileName:

MyFilesExtension := ExtractFileExt(MyFileName); // Delphi

MyFilesExtension = ExtractFileExt(MyFileName); // C++

The resulting string includes the period character that separates the name and extension parts. This string is empty if the given file name has no extension.

Note: This function works for multi-byte character systems (MBCS).