Function RegisterForPrintAsyncNotifications 

pub unsafe extern "system" fn RegisterForPrintAsyncNotifications(
    pszname: PCWSTR,
    pnotificationtype: *const GUID,
    euserfilter: PrintAsyncNotifyUserFilter,
    econversationstyle: PrintAsyncNotifyConversationStyle,
    pcallback: *mut c_void,
    phnotify: *mut HANDLE,
) -> HRESULT