Provided is an image processing method in a program that is linked with a separate program and displays a window by being activated on the basis of the separate program, the separate program being executed in an image processing apparatus having a plurality of display sections and displaying a window on any of the plurality of display sections. The image processing method includes: acquiring display information including information as to which of the plurality of display sections the window of the linked separate program is displayed on; determining whether or not a display section.