Type Alias lv_obj_tree_walk_cb_t

pub type lv_obj_tree_walk_cb_t = Option<unsafe extern "C" fn(_: *mut lv_obj_t, _: *mut c_void) -> u32>;

Aliased Type

enum lv_obj_tree_walk_cb_t {
    None,
    Some(unsafe extern "C" fn(_: *mut lv_obj_t, _: *mut c_void) -> u32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut lv_obj_t, _: *mut c_void) -> u32)

Some value of type T.