Type Alias JackSyncCallback 

pub type JackSyncCallback = Option<unsafe extern "C" fn(u32, *mut Struct__jack_position, *mut c_void) -> i32>;

Aliased Type

pub enum JackSyncCallback {
    None,
    Some(unsafe extern "C" fn(u32, *mut Struct__jack_position, *mut c_void) -> i32),
}

Variants

None

No value.

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

Some value of type T.