Computer program product, information processing method, and information processing apparatus

A computer program product includes a non-transitory computer-usable medium having computer-readable program codes embodied in the medium. The program codes when executed cause a computer to execute: detecting a connection status of an externally connected second display (200) different from a built-in first display (119); writing status information indicating the detected connection status in a storage (90), changing over a display destination between the first display (119) and the second display (200) based on the detected connection status, and controlling a display screen according to screen specifications of the first display (119) or the second display (200), which corresponds to the display destination after changeover; and reading the connection status written in the storage (90) and scaling a display image at a magnification based on the read connection status.