1. A gesture processing method for use with a touch screen, the gesture processing method comprising steps of: receiving a position signal; transmitting the position signal to a first gesture engine and a second gesture engine; generating a top-layer image, wherein a content of a workspace is covered by the top-layer image; determining whether a first type gesture event is generated, wherein if the first type gesture event has not been generated, the top-layer image is adjusted according to a plurality of second type gesture events which are successively generated before the first type gesture event, wherein when the first type gesture event is generated, the top-layer image is adjusted according to the first type gesture event; generating a gesture end event and accordingly adjusting the content of the workspace when the first type gesture event is no longer generated; and removing the top-layer image after the workspace is adjusted.