I think you can simply “focus” the desktop, and then launch any screenshot tool, there is no protection for that.
Once it’s in a picture, you can OCR all you want.

Unless you have a program that does just that (protecting agains screen shots), I don’t see the need of any other tool.

They seem well fed.

I was born in France, now I live in Japan. France is not home anymore.

Most are the hunted, some are the hunter.