ocr: DEMO.FSLERight Arrow Button:mouscDown" Increment scroll value by arrow click - increment. Adjust thumb position. Start a - timer ticking 50 that if user is holding - down nouse button, action will repeat - method nouseDown(var eventinto Mousetvent) Adjustscrollvalue(arrowclickincrement,"Up") Ihumbloscrollvalue) Changevalue() self.setlimer (25) endmetnod Edit Line: 12 Col: 10