Type Alias RTWQPERIODICCALLBACK

pub type RTWQPERIODICCALLBACK = Option<unsafe extern "system" fn(context: Ref<'_, IUnknown>)>;

Aliased Type

enum RTWQPERIODICCALLBACK {
    None,
    Some(unsafe extern "system" fn(_: Ref<'_, IUnknown>)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: Ref<'_, IUnknown>))

Some value of type T.