Type Alias nspire_callback 

pub type nspire_callback = Option<unsafe extern "C" fn(arg1: usize, arg2: *mut c_void)>;

Aliased Type

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

Variants

None

No value.

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

Some value of type T.