| 摘要 |
Methods and apparatus are provided for controlling a touchscreen (104, 200) in an electronic system (100) and adjusting a value using a control element (400). A method is provided for controlling a touchscreen (104) adapted to sense object presence in a sensing region (206). The method comprises displaying a control element (400) having a reference point (404) on the touchscreen (104), and adjusting the value of a system property in response to detecting an object overlapping at least part of the control element (400). The value of the system property is adjusted at a rate based on the distance between the object and the reference point (404).
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