| 摘要 |
A client apparatus which transmits a service request to a server apparatus via a network, the server apparatus generating screen information to be displayed on a virtual screen, the screen information including display data and coordinate data corresponding to the service request, the client apparatus comprises an extraction unit configured to extract screen information corresponding to a designated area, which is a partial area of the virtual screen, from the screen information generated by the server apparatus, and a display unit configured to constantly display the screen information extracted by the extraction unit on a constant display area, which is a partial area of a client screen.
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