GRAPHICAL USER INTERFACE, SET VALUE INPUT METHOD AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a graphical user interface which can make a user recognize the setting situation of the set value against a setting enable range without bothering the people around the user. SOLUTION: When a changing instruction is inputted to increase or decrease the set value that is shown on a CRT via the operation of an input device 201, a graphical user interface compares the upper and lower limit value which are read out of the boundary value data 210 with the set value that is changed by a numeric data increase/decrease means 203 via a boundary value decision means 204. Thus, it's decided whether the changed set value is larger than the upper limit value or smaller than the lower limit value of a setting enable range. Based on this decision result, a set value control means 205 changes the display color for the changed set value.