How many inventory slots are there?

Detect when a player moves an item to an inventory slot - minecraft inventory slot png This will pull up a window with your inventory with two open slots above that The first slot is for the item you wish to enchant and the second is for lapis minecraft slot machine I minecraft there is hotbar slots, 3 inventory slots, both in a row Also there is 1 slot 1 · 2 · Next 1 of 2 Go to

minecraft slot png I'm trying to check for a player that has a Stick in the second slot and then activate a command block with an effect