Hello,
so I am a new user on Krita, and I currently use a ASUS touch screen computer(which can go into tablet mode), so I got a drawing stylus from eBay, and when i used it on Google or something, it could function normally like a mouse, but when I tried to draw with it in Krita, it seemed that the software could not sense the pen(in both tablet and normal mode). Does Krita just not work if you use a stylus on a touch-screen computer?
http://www.ebay.com/itm/Capacitive-Styl ... hash=item0
(The link above is a link to the pen I brought on eBay)
Thanks!

I think only the 4.0 pre-alpha version has touch-painting.
You can download it from here: Nightly Builds for Windows
But this is in an early stage of development, so you might experience eventual bugs and crashs.

It's been available since 3.2.0: https://krita.org/en/item/krita-3-2-0-released/