| 摘要 |
<p>PURPOSE:To operate plural displayed graphic information independently of each other by processing a user event program and a time event program in parallel with each other. CONSTITUTION:A user operating event generating means 106 generates a user operating event when a user performs a prescribed operation with use of a keyboard 103 or a mouse 104. A time event generating means 107 generates a time event at each prescribed time. An event deciding means 108 decides whether the type of an inputted event is identical with a user operating event or a time event. When the latter event is decided, its due program is successively executed. If the former event is decided, its due program is started and the interruption processing is applied to a user event program even in the midst of the start of a time event program. In this case, the time event program is carried on as it is.</p> |
