| 摘要 |
PROBLEM TO BE SOLVED: To display the same content on a plurality of screens and reflect a result of an operation on one screen in all the screens, while preventing an operation not to be reflected in the operation result from being performed.SOLUTION: Fig. 4(c) indicates a case where a cursor is moved to a text input area 11A earlier on a terminal 4 than on a terminal 5. The terminal 4 has an exclusive operation right here. The terminal 4 having the exclusive operation right receives a synchronous content 110, and displays the received synchronous content 110 on a screen. An additional character, such as "LIVE", is displayed in the text input area 11A, for example. The terminal 5 having no exclusive operation right receives an operation-invalidation content 120, and displays it on a screen. Operation is invalidated on the terminal 5. |
