| 摘要 |
<p>PURPOSE:To easily expand the function of the title system and, at the same time, to improve the independency of the hardware of a graphic display device by providing a graphic display management program which collectively manages input and output requests from plural tasks. CONSTITUTION:When input and output are performed to a graphic display device 9, information necessary for the input and output is inputted to a graphic display management program 10 by utilizing the message transmission-reception between tasks. The program 10 communicates with the device 9 in accordance with the content of the received message. Since the program 10 collectively performs the input and output to the device 9 against utilizing job programs 1A-1C, only new additional program except programs 1A-1C is sufficient to be processed when the input/output function is increased as for one utilizing job. Moreover, modification of the programs 1A-1C is not required even when the device 9 is changed. Thus the function can be expanded easily and, at the same time, the hardware of the device 9 can have independency.</p> |
