An image processing apparatus is connected to an apparatus including a layout data storage unit storing layout data, a display part data storage unit storing part data, and a customization data storage unit storing customization data, the image processing apparatus including a menu construction unit that generates the menu based on at least the part data, a menu generation unit that modifies the menu based on the customization data, a display unit that displays the menu modified based on the customization data and accepts an operation for the display part, and a device cooperation unit that requests the apparatus to provide the function and setting information of the function, the function having been accepted via a second display unit.