| 摘要 |
PURPOSE:To input and display the system operating information in an optional position on a display screen by comparing he screens existing before and after an input, extracting and preserving its dissidence part as system operating information, and adding and displaying it in case of displaying it on the screen again. CONSTITUTION:First of all, an operator executes a key-in of an optional character on an optional position of a CRT display device 3 from a key-board device 4, and thereafter, informs the input end to a system operating information input task 9 by pushing a transmission completion interrupting button. Screen images existing before an input and after an input are fetched from a display screen image file 11 and the device 3 by a task 9 and both of them are compared, its dissidence part is extracted as system operating information, and preserved in a system operating information preserving file 10 together with position information, and also a store address and a size are registered on a screen managing file 7. In case said information is displayed on the screen again, a task 5 preserves a screen image to be displayed, in the display screen image file 11, and thereafter, the operating information and the position information from the file 10 are fetched, based on an address and a size from the file 7, reflected on the screen image and outputted to the device 3.
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