#include <fontconfig.h> FcLangResult FcLangSetHasLang(const FcLangSet *ls); (const FcChar8 *lang); .fi
FcLangSetHasLang checks whether ls supports lang. If ls has a matching language and territory pair, this function returns FcLangEqual. If ls has a matching language but differs in which territory that language is for, this function returns FcLangDiffentTerritory. If ls has no matching language, this function returns FcLangDifferentLang.
Fontconfig version 2.8.0