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.
Para escoller unha fiestra específica dun programa, debe escoller tanto a clase como o papel. A clase da fiestra determinará o programa, e o papel específica a fiestra en concreto do programa; porén moitos programas non fornecen papeis de fiestra útiles.