Event for weapon drawn/sheathed ?

[HailTheMoons]

Hello everyone,

Today, as a trial, I wanted to display a message in the chat when I sheath or draw weapons.
Sadly I can't find a satisfying EVENT (I searched the EVENT_PLAYER_DRAW_WEAPONS, but I guess it would be too simple ^^).
What should I search for ?

I guess the solution might be on animation or something like that, but would love some help.