Information display apparatus having multiwindow system

U.S. Patent Number: 5386504

Abstract: An information display apparatus having a multiwindow system designed to achieve high speed image drawing without impairing the operability of the multiwindows. In this apparatus, a communication controller sets an exclusive mode discrimination flag when a request to do so is generated by an application program. The displaying capability for all other application programs is then suspended. If another application program then generates a request with respect to window management, the communication controller checks an application program management table. When the result of the check indicates that the request is generated by a suspended application program, the request is stored in a communication buffer and processing of the request is suspended unless the suspension of the processing is cancelled.

Inventors: Yoda; Nobuhisa (Tokyo, JP), Watanabe; Hiroshi (Kawasaki, JP), Ogaki; Takeshi (Tokyo, JP), Iwase; Akinori (Yokosuka, JP), Takagi; Shiro (Yokohama, JP)

Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP)

Application Number: 08/068,225

Issued: 1995-01-31

Expired: 2007-01-31

Classes: 715/798 ; 715/790; 715/803; 715/804

Field of search: 395/155,157,161,650

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