| 摘要 |
PROBLEM TO BE SOLVED: To confirm whether the function of a relevant button is executed or not even in the case of too quick an operation as well as visually recognizing the pressing of the button on a screen by previously designating the color of the button, which is changed when the button is pressed, so as to be different corresponding to how many times the button is pressed. SOLUTION: According to a program, a CPU outputs a display instruction for displaying the button on the screen and the button is displayed on the screen. The program refers to information previously stored in a memory for changing the color of the button and color information provided as a result of memory reference is plotted in the surface color of the button (S3). When changing the set color to gray →blue → red → gray, for example, the gray is displayed at the time of executing the program. When the button in gray is pressed, the button is recessed in blue and recovered in blue. When the button in blue is pressed, the button is recessed in red and recovered in red. When the button in red is pressed, the button is recessed in original gray again and recovered in gray. |
