Yes, I've been studying this recently. The ink function of office2003 under XP system is gray (it is said that XP can also install a flat component, that is, a flat control panel, which I haven't tried yet). Then I used the ink function of OFFICE2007 under WIN7 system, which can be used. I just used a tablet, and I can draw circles, sign and other handwriting at will. In fact, you can also draw with the mouse, but it is not easy to control, and the words written are ugly.