Information processing apparatus

An information processing apparatus having a touch panel sensor that receives operation input by a touch portion device or instrument allowing a touch operation and an input receiving device for a pointing device that receives operation input by a pointer operated by a pointing device, the apparatus comprising:

• a control processor and a storage device storing instructions that are operable, when executed by the control processor, to cause the control processor to perform operations including:
• receiving operation input by a user through a touch panel device,
• displaying windows on a display portion,
• performing display control of the windows according to the operation input for the touch panel device,
• moving a specific window displayed on the display portion according to the operation input for the touch panel device,
• setting a window exchange execution area for each window on the display portion, where the window exchange execution area is a predetermined range for performing control of window exchange in a range that is less than a whole area of the window,
• when the specific window is moved by a drag operation with the touch portion device or instrument or the pointing device, displaying which is visually discriminable on the display portion so that the user is able to recognize whether or not the touch portion device or instrument or the pointing device enters in the window exchange execution area and whether or not exchange of the windows will be executed when the drag operation is stopped at its current location,
• judging a predetermined condition as satisfied when the drag operation is stopped in the window exchange execution area of a different window, and
• when a judgement on whether or not to satisfy the predetermined condition is positive, displays the different window at a position having been occupied before start of movement of the specific window which is moved and displays the specific window which is moved at a position of the different window to exchange the windows, and when the judgement is negative, displays the specific window at a position having been occupied before start of movement.