In current interfaces, users select objects, apply operations and change viewing parameters in distinct in distinct steps that require switching attention among several screen areas. Our See-Though Interface system addres this problem by locating tools on a transparent sheet that can be moved over applications with one hand using a trackball, while the other hand controls a mouse cursor.The user clicks through a tool onto application objects, simultaneously selecting an operation and an operand. Tools may include graphical filters, caled Magic Lens filters, that display a customized view of application objects
When money attacks... lenses
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