pub unsafe fn FwpmProviderContextSubscribeChanges0<P0>(
    enginehandle: P0,
    subscription: *const FWPM_PROVIDER_CONTEXT_SUBSCRIPTION0,
    callback: FWPM_PROVIDER_CONTEXT_CHANGE_CALLBACK0,
    context: Option<*const c_void>,
    changehandle: *mut HANDLE
) -> u32
where P0: IntoParam<HANDLE>,