Type Alias windows::Win32::Devices::BiometricFramework::PWINBIO_ASYNC_COMPLETION_CALLBACK

pub type PWINBIO_ASYNC_COMPLETION_CALLBACK = Option<unsafe extern "system" fn(asyncresult: *const WINBIO_ASYNC_RESULT)>;

Aliased Type

enum PWINBIO_ASYNC_COMPLETION_CALLBACK {
    None,
    Some(unsafe extern "system" fn(_: *const WINBIO_ASYNC_RESULT)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *const WINBIO_ASYNC_RESULT))

Some value of type T.