OBJECT OPERATION SYSTEM, OBJECT OPERATION CONTROL PROGRAM AND OBJECT OPERATION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To appropriately determine a multi-touch operation.SOLUTION: An object operation system includes a display part for a displaying an object on a screen, an operation part for receiving a touch operation on the screen and outputting information corresponding to the touch operation, and a control part for controlling the display part and the operation part. The control part identifies a multi-touch operation in which a plurality of points being three points or more are simultaneously touched on the screen on the basis of the information outputted from the operation part, determines an operation object depending on whether a prescribed number of touches being two points or more is located on the area of one object or an object group obtained by grouping a plurality of objects when the multi-touch operation is performed, and executes an operation corresponding to a change in the position of the touch to the operation object in the case that the position of at least one touch in the prescribed number of touches changes.SELECTED DRAWING: Figure 15