1. A computing device for generating a gesture event, comprising: at least one processor; a non-transitory storage system coupled to the at least one processor and configured to store one or more programs that are executed by the at least one processor, the one or more programs comprising instructions for: obtaining coordinates of an object; calculating a gesture-making area and coordinates of a center point of the gesture-making area according to the coordinates of the object; calculating offset coordinates; compensating, to correct the gesture-making area, the coordinate of the center point of the gesture-making area according to the offset coordinates, to correct the gesture-making area; and generating the gesture event according to the offset coordinates and the corrected gesture-making area.