| 摘要 |
PROBLEM TO BE SOLVED: To reduce the burden on an operator who is not accustomed to shift input operation.SOLUTION: An input device includes: a display operation part in which an operation part is so disposed as to be superimposed on a screen of a display part; a keyboard in which a plurality of keys, including a plural-setting key to which a plurality of menu items are allocated, are disposed; list display means for displaying, when the plural-setting key is specified, a list display screen, in which the plurality of menu items set to the plural-setting key are displayed as menu keys capable of being respectively specified in an independent manner, in the display part; and signal transmission means for transmitting, when a specification operation, via the operation part, to any one of the menu keys displayed in the list display screen is made, a signal representing that the one menu key is specified. |
