| 摘要 |
When a user performs a specified operation, a resolution changing unit 22 changes display resolution of a display device 10, allowing the size of texts and images, which are displayed inside of a window, to be increased or decreased at a touch. In order not to maintain the position and size of a window in the display area before and after changing display resolution, an unchanged information acquisition unit 21 acquires the position and size of the window before changing resolution, and then a window display changing unit 23 performs window display processing using the acquired information. In addition, the resolution of texts and images displayed inside of a window is changed with change of display resolution.
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