Function glk_sys::gidispatch_set_object_registry

pub unsafe extern "C" fn gidispatch_set_object_registry(
    regi: Option<unsafe extern "C" fn(obj: *mut c_void, objclass: glui32) -> gidispatch_rock_t>, 
    unregi: Option<unsafe extern "C" fn(obj: *mut c_void, objclass: glui32, objrock: gidispatch_rock_t)>
)