Getting slot of selected item?

Hello there, i'm thinking of a usefull plugin but i'm not sure about something.

There is any way to get slot number from inventory (not the belt) when a player click on an item from him inventory or get the selected item slot / active item slot from inventory (not de the belt) at any moment, i know GetActiveItem() but it work only for the belt.

 

As far as I know the server is never aware of any items that are selected in the inventory.

 

Absolute correct

 

That what i guess, thanks anyway