公开(公告)号：GB2191917A

公开(公告)日：1987-12-23

申请号：GB8614617

申请日：1986-06-16

Applicant: IBM

Inventor： ANTHIAS TEFCROS ,  HERROD JOHN ANDREW ,  TREES GEORGE MICHAEL

IPC: G06T11/00 ,  G06F3/048 ,  G06F3/14 ,  G09G5/14 ,  G06F15/62

Abstract: A multiple window display system includes a display device and a screen ownership area pointing to the identity of the window which is to contribute the data for each display area of the display device, characterised in that an ordered list is maintained of the active windows in the priority order thereof, means being provided to regenerate the screen ownership area from the list, on each change made to the list, in terms of list position per device display area, by overwriting, progressing through the list in order of increasingly significant priority order, the list indicating, in each position thereof, the identity of the window having the respective priority. The list contains the addresses of the windows in storage and the type thereof. The screen ownership area is reset to the lowest potential priority list position value and is overwritten.

公开(公告)号：DE3787125D1

公开(公告)日：1993-09-30

申请号：DE3787125

申请日：1987-04-03

Applicant: IBM

Inventor： ANTHIAS TEFCROS ,  HERROD JOHN ANDREW ,  TREES GEORGE MICHAEL

IPC: G06T11/00 ,  G06F3/048 ,  G06F3/14 ,  G09G5/14 ,  G09G1/00

Abstract: A multiple window display system includes a display device and a screen ownership area pointing to the identity of the window which is to contribute the data for each display area of the display device, characterised in that an ordered list is maintained of the active windows in the priority order thereof, means being provided to regenerate the screen ownership area from the list, on each change made to the list, in terms of list position per device display area, by overwriting, progressing through the list in order of increasingly significant priority order, the list indicating, in each position thereof, the identity of the window having the respective priority. The list contains the addresses of the windows in storage and the type thereof. The screen ownership area is reset to the lowest potential priority list position value and is overwritten.

公开(公告)号：DE3787125T2

公开(公告)日：1994-03-17

申请号：DE3787125

申请日：1987-04-03

Applicant: IBM

Inventor： ANTHIAS TEFCROS ,  HERROD JOHN ANDREW ,  TREES GEORGE MICHAEL

IPC: G06T11/00 ,  G06F3/048 ,  G06F3/14 ,  G09G5/14 ,  G09G1/00

Abstract: A multiple window display system includes a display device and a screen ownership area pointing to the identity of the window which is to contribute the data for each display area of the display device, characterised in that an ordered list is maintained of the active windows in the priority order thereof, means being provided to regenerate the screen ownership area from the list, on each change made to the list, in terms of list position per device display area, by overwriting, progressing through the list in order of increasingly significant priority order, the list indicating, in each position thereof, the identity of the window having the respective priority. The list contains the addresses of the windows in storage and the type thereof. The screen ownership area is reset to the lowest potential priority list position value and is overwritten.