Unified hierarchical and tear off menus in a graphical event-driven computer system
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United States of America Patent
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May 6, 1997
Issued Date -
N/A
app pub date -
Mar 4, 1996
filing date -
May 13, 1994
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Explicit support is provided at the system software level for application program tear-off menus in a manner that is essentially application-transparent. All menus are transformed into windows and grouped in a single menu layer for each application, greatly simplifying many of the complexities of navigating through hierarchical and tear-off menus. Each application has its own menu layer that is shown and hidden as the application moves to the foreground and background. Tear-off menus, as with all menus, are hidden and shown with the menu layer, generating the desirable 'floating-window' behavior. More particularly, menus are managed in a graphical, event-driven computer system having a computer display by representing the menus as windows, providing a menu layer for containing menus of a computer program, and displaying a menu. Events occurring with respect to the menu layer are detected, in response to which display of the menu is varied.
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