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Two-handed input in a standard configuration of notebook with external mouse

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Publication date2010
Host publicationProceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries
Place of PublicationNew York, NY, USA
Number of pages10
ISBN (Print)978-1-60558-934-3
<mark>Original language</mark>English


This paper discusses two-handed input for interaction with notebooks, motivated by the observation that notebooks are often used with an external mouse. We present results of a survey of 905 notebook users, of which 63.8% reported occasional, and 47.0% regular use of a mouse instead of the built-in pointing device (a touchpad in 95.8% of the reported configurations). Based on this finding, we propose use of the built-in touchpad with the non-dominant hand when an external mouse is used as primary pointing device. We provide a systematic analysis of the input space of such a configuration, and contribute a set of techniques that specifically exploit touchpad properties for input with the non-dominant hand. These techniques include flick, scale and rotate gestures; absolute positioning with tokens; and touchpad use as key modifier. The techniques are demonstrated in a variety of GUI applications in a standard environment of notebook with external mouse.