| 摘要 |
A handheld data processing device 82 has a touch-sensitive display screen 84 and interface means for generating a graphic user interface GUI on the screen, the GUI having one or more image elements 88, 92, 94, 96, 98, 100, 102 each representing an input. The screen generates a control signal corresponding to an input in response to a portion of the screen on which an image element representing said input is displayed being touched by a user of the device. The device has processing means for processing the control signal. The interface means is operable to locate the image elements on an accessible portion of the screen so that in use the image elements are within reach of a digit (90) of a hand in which the device is held. The image elements may, for example, be located in a fan in a corner of the screen, or in linear fashion along the edges of the screen. The layout of the GUI may also be modified in order to be accessible by a left- or right-handed user.
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