How to draw lines or write on the whiteboard after the picture is projected on the electronic whiteboard?

The whiteboard and the new machine will not be automatically linked, so there is no response when writing pictures.

Methods: After confirming that all kinds of connecting wires are connected correctly, install the electronic whiteboard software. For example, I installed the revised version of Honghe 20 14, completely installing-restarting the computer-positioning. When finished, open the software, select a pen, and then you can write. I wish you success,

If you mean projecting on a digital booth, you can only write pictures on the paper you project.