1. An input method for a touch panel display in an information processing system that detects a touching of the touch panel display or a depression of a key on a keyboard as an input event, said method comprising the steps of: generating a mouse pointer window in response to an input mode being switched; receiving and hooking an input event; if the input event is a mouse event, disabling the mouse event following a mouse movement event; and displaying the mouse pointer window at a position where the touch panel display is touched in the input event.