Operating system for handheld computing device having graphical window minimization/enlargement functionality

摘要

A portable computing device has a processor and a touch- sensitive display. The display includes a touch-sensitive area superimposed on a viewing area, whereby the touch-sensitive area extends beyond the viewing area to form a border outside of the viewing area but within the touch- sensitive area. The handheld computing device has an operating system which executes on the processor to provide a graphical user interface environment capable of presenting a graphical window and a program taskbar within the viewing area. The program taskbar presents a program icon representing a program that is active within the graphical window. The operating system is configured to minimize the graphical window to remove the graphical window from the viewing area or to enlarge the graphical window to restore the graphical window in the viewing area in response to contacting the program icon.