... functions, multi-finger to achieve gesture recognition, can achieve next page, write, erase, zoom, roaming and other functions. 2. Toolbar: ... , providing move, zoom in, zoom-out. 5. PPT applications: seamless integration with the PPT in the PPT single-player refers to ... hand gesture recognition, gestures can be used to achieve next page, exit, write, erase and other functions. 6. Word endorsement: ...