`EVENT_STEALTH_STATE_CHANGED`

ESO Lua API function — used by 42 of the 3,030 addons we indexed (combined 5,289,001 downloads). Signature from the official ESOUIDocumentation.txt, API version 101050.

Official signature

EVENT_STEALTH_STATE_CHANGED(string unitTag, [StealthState|#StealthState] stealthState)

Real usage — from LibSFUtils

            [EVENT_STACKED_ALL_ITEMS_IN_BAG] = "EVENT_STACKED_ALL_ITEMS_IN_BAG",
            [EVENT_STEALTH_STATE_CHANGED] = "EVENT_STEALTH_STATE_CHANGED",
            [EVENT_TRADING_HOUSE_RESPONSE_RECEIVED] = "EVENT_TRADING_HOUSE_RESPONSE_

Short excerpt from the shipping addon LibSFUtils — its ESOUI page; the code belongs to its author. Shown because documentation without a working example is half a reference.

Most-downloaded addons using it

Addon	Total downloads
LibSFUtils	1,648,729
Azurah - Interface Enhanced	1,462,318
Foundry Tactical Combat (FTC)	1,097,601
Jack of all Trades - Automatic CP Respec	194,328
Combat Reticle	183,846
Thief Tools	119,252