Type Alias windows::Win32::Devices::BiometricFramework::PIBIO_ENGINE_QUERY_PREFERRED_FORMAT_FN

pub type PIBIO_ENGINE_QUERY_PREFERRED_FORMAT_FN = Option<unsafe extern "system" fn(pipeline: *mut WINBIO_PIPELINE, standardformat: *mut WINBIO_REGISTERED_FORMAT, vendorformat: *mut GUID) -> HRESULT>;

Aliased Type

enum PIBIO_ENGINE_QUERY_PREFERRED_FORMAT_FN {
    None,
    Some(unsafe extern "system" fn(_: *mut WINBIO_PIPELINE, _: *mut WINBIO_REGISTERED_FORMAT, _: *mut GUID) -> HRESULT),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *mut WINBIO_PIPELINE, _: *mut WINBIO_REGISTERED_FORMAT, _: *mut GUID) -> HRESULT)

Some value of type T.