To properly bring an object into a selection state according to an intention of a user, and to bring the object into the selection state by an intuitive operation approximate to a real feeling.

When a touch on an object is performed as a first operation by a thumb in a state that the object is displayed as shown in Fig.9(a), a frame line of the object is thickened, and a shape of a corner close to the thumb (a lower right corner) is changed into a shape so that the corner is turned up (a display state so that the corner can be pinched by fingers) as shown in Fig.9(b). In this state. When the lower right corner of the object is touched so that the lower right corner is pinched by two fingers (the thumb and a forefinger) as shown in Fig.9(c), the object is brought into a selection state.