While FreeType's auto-hinter doesn't expose API functions by itself, it is possible to control its behaviour with
FT_Property_Get. The following lists the available properties together with the necessary macros and structures.
Note that the auto-hinter's module name is ‘autofitter’ for historical reasons.
Available properties are
fallback-script (experimental), and
default-script (experimental), as documented in the ‘Driver properties’ section.