Type Alias GazePointFn

pub type GazePointFn = Option<unsafe extern "C" fn(gaze_point: *const GazePoint, user_data: *mut c_void)>;

Aliased Type

pub enum GazePointFn {
    None,
    Some(unsafe extern "C" fn(*const GazePoint, *mut c_void)),
}

Variants

None

No value.

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

Some value of type T.