As helper for develop application forms fit to some resolution I created this little application. It has tray icon/menu and draw frame (with hole) that can be dragged on the screen and can be changed resolution of this frame. It's in Czech language, but it's simple to see it clear. Only little help (Czech to English): Obdelnik = Rectangle Zmena Rozliseni = Change of Resolution Nastaveni = Options Barva Okraje = Color of Frame Sirka Okraje = Width of Frame Zobrazit Obdelnik = Show re