Type Alias ulDestroyBufferCallback 

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

Aliased Type

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

Variants

None

No value.

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

Some value of type T.