Manpages - FcDirCacheRead.3

FcDirCacheRead - read or construct a directory cache

#include <fontconfig/fontconfig.h>

FcCache * FcDirCacheRead (const FcChar8 dir, FcBool force, FcConfig */config/);*

This returns a cache for dir. If force is FcFalse, then an existing, valid cache file will be used. Otherwise, a new cache will be created by scanning the directory and that returned.