1. Basic annotation and drawing functions, realize screen annotation on any computer interface, the pen shape can be selected from ordinary pen, row pen and brush, etc. The color of the annotation pen can be arbitrarily set, and the annotation content can be erased at any time with the electronic eraser. Content can be saved and printed at any time;
2. Mouse function, the tip of the electronic pen is equivalent to the left button of the mouse, and the button of the pen body is equivalent to the right mouse button. Use the electronic pen to realize the functions of mouse click, double click, selection, drag, right click, etc.;
3. The function of restoring and updating the contents of the interactive whiteboard.