| 摘要 |
A plurality of types of windows are simultaneously openable in accordance with an application program, and one or more windows are simultaneously openable for each of the types. One or more types can be designated from among the plurality of types of windows, in accordance with a request of a user. All of windows belonging to the types are extracted from among the windows currently opened on the display, and icons individually representative of all of the extracted windows belonging to the designated types are displayed on the display. When any one of the displayed icons has been selected by the user, the window corresponding to the selected icon is displayed on the display as an active window.
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