| 摘要 |
<p>PURPOSE:To attain high speed and to reduce the capacity of a window split table by storing division information representing a visible area and an invisible area with respect to a window in a temporary window tentatively, referring to the temporary window split table in drawing a graphic form to the window and displaying the graphic form on the visible area only. CONSTITUTION:In giving a display to a specific window, a main control section 100 refers to the content of a window management table 400 in advance to divide the specific window to be accessed into plural rectangular areas comprising visible areas and invisible areas and applies the processing storing the divided information in the temporary window split table 500. Further, in drawing a graphic form on the window, the main control section 100 refers to the temporary window management table 500 to apply control that the graph is displayed only the actually visible area of the specific window. The window management table 400 stores the start/end coordinates of each window together with priority information.</p> |
