Can this library be used to achieve this?

[neitanod]

Would it be easy to use this to make a screencast recording helper that shows on the screen every key the user types, just like the one used in this video? https://www.youtube.com/watch?v=kd9WDL1h9Eg Or even better: https://vimeo.com/6306508 (see at 5:20)

[BurntSushi]

I don't really know what your definition of "easy" is, but no, I wouldn't consider it easy. In order to use this library effectively, you'll need to read up on how to use X. Painting images to the screen can be tricky. xgbutil may be of some help there.

[neitanod]

Sorry, I was convinced I was posting under your xgbutil repo.