| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain display contents which were displayed before the size of a window is changed even after the change by managing the display contents with vector data. SOLUTION: An external position specifying process part 12 divides the whole screen including all windows into several parts and manages them. When there are the windows in sections corersponding to the divided and managed parts, the depression of a button of a position specifying device 4 which correspond to the section is detected when the button is pressed, and an indication is sent to a screen display management part 13 so that the window screen linked with the button is enlarged and displayed. When a window screen whose display is managed with a vector is varied in size, a management part 13 acquires the varied size. On the basis of the acquired result, the size of display vector data stored in a vector data storage part 14 is varied by a vector conversion part 16. Consequently, while the display contents of the window screen are held, the size of the window is varied.</p> |
