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

# LowerCase

Return a lowercase version of a string.

## Declaration

Source position: sysstrh.inc line 74

`function LowerCase(`
`const s: string`
`):string; overload; function LowerCase(`
`const s: string;`
`LocaleOptions: TLocaleOptions`
`):string; overload; function LowerCase(`
`const V: variant`
`):string; overload; function LowerCase(`
`const s: UnicodeString`
`):UnicodeString; overload;`

## Description

LowerCase returns the lowercase equivalent of S. Ansi characters are not taken into account, only ASCII codes below 127 are converted. It is completely equivalent to the lowercase function of the system unit, and is provided for compatibility only.

Lowercase does not change the number of characters (or bytes) in an ansistring or shortstring.

## Errors

None.

## See also

AnsiLowerCase |  | Return a lowercase version of a string.
UpperCase |  | Return an uppercase version of a string.
AnsiUpperCase |  | Return an uppercase version of a string, taking into account special characters.

## Example

    Program Example77;

    { This program demonstrates the LowerCase function }

    Uses sysutils;

    Begin
      Writeln (LowerCase('THIS WILL COME out all LoWeRcAsE !'));
    End.