c_hb_ot_layout_language_get_required_feature_index
extern (C) __gshared
hb_bool_t function(hb_face_t* face, hb_tag_t tableTag, uint scriptIndex, uint languageIndex, uint* featureIndex) c_hb_ot_layout_language_get_required_feature_index;
harfbuzz c functions
static variables