Type Alias lv_group_focus_cb_t 

pub type lv_group_focus_cb_t = Option<unsafe extern "C" fn(*mut _lv_group_t)>;

Aliased Type

pub enum lv_group_focus_cb_t {
    None,
    Some(unsafe extern "C" fn(*mut _lv_group_t)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _lv_group_t))

Some value of type T.