Use material when pickup weapon

I need to make it so when you pickup a weapon(a certain weapon) a material or vtf goes on your screen(its a HUD) and when you put it away the vtf goes away. How can i do this?

bump

surface.DrawTexturedRect

You could hook it to SWEP:Holster() and SWEP:Deploy() or SWEP:DrawHUD()

Thats what I’m doing, Ill try those methods