| 摘要 |
<p>PURPOSE: To eliminate a flicker when a window display is updated by shortening a window display update time. CONSTITUTION: When a request to display a window is made by an application, etc., a window control part 4 registers definition information on the window in a window definition information management part, etc., and secures a window work buffer for storing the display data of the whole window in a non-display area 8 in a video window 6. Then characters, figures, etc., to be displayed in the window are drawn on the secured window work buffer. The display data drawn on the window work buffer are transferred as data in a rectangle to a display area 7 in the video memory 6 on the basis of the window definition information, etc., and displayed on the screen of a display part 10.</p> |
