Type Alias ULUpdateHistoryCallback 

pub type ULUpdateHistoryCallback = Option<unsafe extern "C" fn(user_data: *mut c_void, caller: ULView)>;

Aliased Type

pub enum ULUpdateHistoryCallback {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *mut C_View)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *mut C_View))

Some value of type T.