cursor disable and mouse delta values about olcpixelgameengine HOT 1 OPEN

I can confirm it is not possible to do either of these things with stock/official PGE.

Speaking strictly about cursor. I made modifications to PGE nearly 2 years ago that added ShowSystemCursor(bool) to the PGE API, and implemented them in all of the platforms PGE supported, at the time.

It's located here:
https://github.com/Moros1138/PGECursor

example usage can be found in src/main.cpp

DISCLAIMER: I want to be absolutely clear. The repository I linked is a MODIFIED, OLD VERSION of PGE. A lot can happen in 2 years and some features will no doubt be missing if you try to use it! If you're adventurous, you could use it as reference and modify a more modern version of PGE.

Shifting gears to the relative mouse coordinates.. I just did a quick skim and it looks to me like all of the platform reporting about the mouse movement is done with absolute positions, relative to the window's placement on the screen. I'm sure relative mouse coordinates can be done but I'm not sure how (or if?) it would be implemented.

from olcpixelgameengine.