For selecting a specific window in an application, both window class and window role should be selected. Window class will determine the application, and window role the specific window in the application; many applications do not provide useful window roles though.
Chun fuinneog ar leith i bhfeidhmchlár a roghnú, ba chóir duit aicme fhuinneoige agus ról fuinneoige a roghnú. Cuireann an aicme fhuinneoige an feidhmchlár in iúl, agus cuireann an ról fuinneoige an fhuinneog ar leith in iúl; cé nach bhfuil róil áisiúla fuinneoige soláthraithe ag go leor feidhmchlár.