Man page - fcstrdowncase(3)
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Manual
FcStrDowncase
NAMESYNOPSIS
DESCRIPTION
NAME
FcStrDowncase - create a lower case translation of a string
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcChar8 * FcStrDowncase (const FcChar8 * s );
DESCRIPTION
Allocates memory, copies s , converting upper case letters to lower case and returns the allocated buffer.