| 摘要 |
A selection determining device (200) includes a detecting unit (201) which detects, when a point on a touch screen is pressed, a coordinate value of the point, detects, when two points in a two-dimensional plane are pressed, a coordinate value of a midpoint between the two points, and detects that none is pressed when no points is pressed, a determining unit (202) which determines, when it is determined that none is pressed, whether or not any of pressible predetermined regions is singularly selected, any two of the pressible predetermined regions are simultaneously selected, or none is selected based on a sequence of states detected by the detecting unit (201) by then, and a display unit (203) displaying a graphic symbol representing each of the pressible predetermined regions on the touch screen.
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