| 摘要 |
A portable communication device. The portable communication device comprises a touch screen, a key code generator, and a controller. The touch screen generates event information in response to a manipulation on the screen, wherein the event information specifies position information corresponding to the manipulation. The key code generator generates a key code corresponding to the event information according to the position information thereof, wherein the key code indicates an upward, downward, leftward, or rightward key code, and the key code does not correspond to any visual item displayed on the touch screen.
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