NOTE: This probably doesn't work on the 32 bit version.
So, after re-learning pointers, here's a CT that SHOULD point to how many items are in your ninth belt/hotkey slot. Just open the game, attach the CT, make/continue a game, put an item in the ninth slot, then change the value. This works, but I made it as a test, so if it doesn't work for you, tell me. Also, it might taking a few items moving around into and out of the ninth slot to make it show up on cheat engine. Don't really know why, but it happens sometimes.
Now, if this worked in mp, which I'm not saying it does, I'd reccomend not using it there. Wrecks the experience.
UPDATE: Did another pointer scna and found one that wasn't so buggy. This new one should work much better than the old one.
https://www.virustotal.com/en/file/5...is/1377207548/
7DaysToDieRefinedInfNinthItem.zip - Jotti's malware scan