Type Alias JackPortRegistrationCallback 

pub type JackPortRegistrationCallback = Option<unsafe extern "C" fn(port: jack_port_id_t, arg1: c_int, arg: *mut c_void)>;

Aliased Type

pub enum JackPortRegistrationCallback {
    None,
    Some(unsafe extern "C" fn(u32, i32, *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(u32, i32, *mut c_void))

Some value of type T.