Type Alias ULCloseCallback 

pub type ULCloseCallback = Option<unsafe extern "C" fn(user_data: *mut c_void, window: ULWindow)>;

Aliased Type

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

Variants

None

No value.

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

Some value of type T.