Browse Prior Art Database

Transparent Partition to Provide Control Functions

IP.com Disclosure Number: IPCOM000039695D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Anthias, T: AUTHOR [+2]

Abstract

This article describes a method for allowing control software to use standard functions to obtain input values and to draw over user partitions or windows. In a windowing environment, it is possible to have several applications displayed simultaneously. Whenever it is desirable to address the screen as a whole as opposed to just one of the windows, it is possible to do this using ordinary function by treating the whole screen as a large transparent partition which has an overriding or the highest priority. In supporting user control functions (such as moving a window), it is necessary for user control to perform functions similar to those performed by the application but, unlike the application, control of the whole screen is required. (An application is restricted to its own window.

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Transparent Partition to Provide Control Functions

This article describes a method for allowing control software to use standard functions to obtain input values and to draw over user partitions or windows. In a windowing environment, it is possible to have several applications displayed simultaneously. Whenever it is desirable to address the screen as a whole as opposed to just one of the windows, it is possible to do this using ordinary function by treating the whole screen as a large transparent partition which has an overriding or the highest priority. In supporting user control functions (such as moving a window), it is necessary for user control to perform functions similar to those performed by the application but, unlike the application, control of the whole screen is required. (An application is restricted to its own window.) To enable the user to address the whole screen, and thus to use function ordinarily reserved to specific windows, the whole screen can be defined as a transparent partition. Thus, while in this particular mode, the user can, for example, draw over the user windows to provide aids for zooming the picture. Any alterations made while in this mode will not affect the applications running in the windows.

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