ELECTRONIC DEVICE, DEVICE OPERATION METHOD AND PROGRAM

摘要

[Problem] To enable good operability using a simple configuration that does not require a complex mechanism as an operating member. [Solution] This invention includes a setting screen display process for setting either an adjustment position or a numerical value on the basis of a user operation, and a control process for changing the adjustment position or the numerical value in accordance with changing the position of a knob via a user operation on the setting screen displayed by the display process. The display process displays the knob that moves on a slider in accordance with a user operation, and when there is no user operation, sets the knob position to a default position on the slider.