The system of claim 8, wherein the information in the porthole memory is updated to reflect any changes which are made in the selected portion.ġ2. The system of claim 9, wherein said porthole memory and said window memories comprise bit save arrays.ġ1. PORTHOLE WINDOW COVERS WINDOWSThe system of claim 8, further comprising a plurality of predefined memory locations wherein the information contained in the windows is stored.ġ0. PORTHOLE WINDOW COVERS DRIVERA system for generating porthole windows for a computer display, comprising:Īn output driver connected to the screen memory and to the display for converting the contents of the screen memory into a signal suitable for use by the display andĪ controller for transferring information to such screen memory to define windows therein, wherein said controller defines a porthole memory which contains a copy of a selected portion of one of an overlapped window, wherein the information in the porthole memory is also transferred to said screen memory, and wherein the selected portion includes information which would not be, except for the porthole memory, transferred to said screen memory.ĩ. The method of claim 6, wherein, in step (b), at least a portion of the first window save memory is copied to the screen memory.Ĩ. (c) copying the contents of the porthole memory to the screen memory, wherein the contents of the porthole memory will be displayed in the window system display.ħ. Wherein the select information copied in step (a) is not copied from the first window memory to the screen memory, and wherein the contents of the screen memory will be displayed in the window system display and (b) copying selected information from a plurality of window memories to a screen memory, (a) copying selected information from a first window memory to a porthole memory In a computer system having a window system display, a method for generating a porthole window, comprising the steps of: The system of claim 1, wherein the porthole bit save array occupies the same memory location as the selected portion of one of said bit save arrays.Ħ. The system of claim 1, wherein the porthole bit save array occupies a separate location in memory from any of said bit save array memories.ĥ. The system of claim 2, wherein said bit save arrays are directly addressable only by the controller.Ĥ. The system of claim 1, wherein said porthole bit save array is contained in memory directly addressable only by the controller.ģ. Wherein said controller includes a porthole bit save array which contains an exact copy of a selected portion of one of said bit save arrays which is not transferred to said screen memory from said bit save array, wherein said porthole bit save array is updated to reflect any changes which are made in the selected portion, and wherein the contents of the porthole bit save array are transferred to said screen memory by said controller.Ģ. A system for generating porthole windows for a computer display, comprising:Īn output driver connected to the screen memory and to the display for converting the contents of the screen memory into a signal suitable for use by the display Īt least one bit save array memory for holding the contents of information windows andĪ controller coupled to said screen memory and to said bit save array memories for selectively transferring the contents of the bit save array memories to the screen memory, and for selectively transferring information between selected bit save arrays, wherein at least one selected portion of a bit save array is not transferred to said screen memory Click on "Customize cookies" to not accept these cookies, manage your further preferences or learn more.1. Third party cookies use cookies for our purposes to show and analyze personalized advertising, generate information on recipients and develop and improve products. If you accept, we will also use cookies to optimize your shopping experience including the use of our and third-party cookies, which store or access standard device information. We use these cookies to provide essential services (they are necessary to provide our site and our services and cannot be deactivated), functional services (they help us to provide useful site features and to show relevant content, performance services (they provide anonymous statistics on how customers navigate our site) and advertising services (may be set up via our site by us or our advertising partners). We use cookies and other similar technologies necessary to enable you to make purchases, to improve your shopping experiences and to provide our services, as detailed in our cookie policy.
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