| 摘要 |
PROBLEM TO BE SOLVED: To improve operability in lifting use restriction on a hard key.SOLUTION: An operation input device 2 displays a soft key on a display unit 3 with the use of a hard key restricted and updates a screen on the basis of a selection operation to the soft key from a user. When an operation target is changed from the soft key to the hard key, the user performs a movement operation (such as a flick operation) for moving a touch position while touching the soft key. When detecting the movement operation with the soft key displayed on the display unit 3 and the use of the hard key restricted, the operation input device 2 lifts the use restriction on the hard key on the basis of operation information. |
