Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-11-13
1998-03-10
Breene, John E.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345349, 345123, G06F 300
Patent
active
057266875
ABSTRACT:
A system for scrolling during a drag and drop operation is provided wherein the determination of whether to scroll is based on the location of a mouse indicator as well as the speed of the mouse indicator. The system maintains a predetermined threshold that is empirically proven to reliably distinguish as to whether a user wishes to perform a drag and drop operation or whether the user wishes to invoke the automatic scrolling of the present invention. The system determines when the mouse indicator is over a predefined area of a window, compares the speed of the mouse indicator to the predetermined threshold and scrolls the window if the mouse indicator is over the predefined area and the speed is less than the predetermined threshold.
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Belfiore Joseph D.
Graham Christopher E.
Guzak Christopher J.
Kerr Randall L.
Madigan Stephen M.
Breene John E.
Microsoft Corporation
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