Events/A

(New with patch 3.0)

Fired when the actionbar numbers disappear, typically when you finish dragging something to the actionbar

arg1 

the mouse button used to click the button. Known values: "LeftButton", "RightButton"

arg2 

true or false for unknown reason.

Fired when the actionbar page changes, typically when you press the pageup or pagedown button.

arg1 

the mouse button used to click the button. Known values: "LeftButton", "RightButton"

arg2 

true or false for unknown reason.

Fired when the actionbar numbers appear, typically when you drag a spell to the actionbar.

no arguments

Fired when any actionbar slot's contents change; typically the picking up and dropping of buttons.

On 4/24/2006, Slouken stated "ACTIONBAR_SLOT_CHANGED is also sent whenever something changes whether or not the button should be dimmed. The first argument is the slot which changed." This means actions that affect the internal fields of action bar buttons also generate this event for the affected button(s). Examples include the Start and End of casting channeled spells, casting a new buff on yourself, and the cancellation or expiration of a buff on yourself.

arg1 

the number of the slot that changed

arg2 

true or false for unknown reason.

Fired when the cooldown for an actionbar or inventory slot starts or stops. Also fires when you log into a new area.

arg1 

if the cooldown is starting, the mouse button used to click the button. Known values: "leftButton"

if the cooldown is stopping or you are logging into a new zone, this is nil

Fired when the state of anything on the actionbar changes. This includes cooldown and disabling.

arg1 

the mouse button used to click the button. Known values: "LeftButton", "RightButton"

can also be nil

Fired when something in the actionbar or your inventory becomes usable (after eating or drinking a potion, or entering/leaving stealth; for example).

no arguments

(this event doesn't seem to be used anymore, use ADDON_ACTION_FORBIDDEN instead)

Fires when an AddOn tries use actions that are always forbidden (movement, targeting, etc.).

If called from an AddOn

arg1 

Name of the AddOn that was last involved in the execution path.

arg2 

The protected function that was called.

Notes 

It's very possible that arg1 will not be the name of the addon that tried to call the protected function.

If called from the chat prompt (/script CastSpellByName("Attack"))

arg1 

The protected function that was called.

This event fires whenever an AddOn is loaded (fires once for each AddOn loaded if multiple AddOns are being loaded), whether that is during the inital Loading Phase or when an AddOn is loaded using the LoadAddOn("addonname") or UIParentLoadAddon("addonname") function. This event always fires after SavedVariables of the AddOn have been loaded from disk and its OnLoad function has been executed.

arg1 

name of the AddOn that was just loaded

This event fires whenever an arena team is opened in the character sheet. It also fires (3 times) when an arena member leaves, joins, or gets kicked. It does NOT fire when an arena team member logs in or out.

This does NOT fire when an arena member joins the team, leaves, gets kicked, logs in/out. Still unsure when this actually fires.

This event is fired when the auction interface is closed.

Note

It appears to fire twice, but the reason is unknown.

This event is fired when the auction interface is first displayed. This is generally done by right-clicking an auctioneer in a major city.

This event is fired when the Auction list is updated. Note that this is not only the case, if the list is completely changed but also if it is sorted (i.e. SortAuctionItems() is called).

Fired when the game attempts to autobind bind-on-equip items.

Fired when you begin automatically following an ally.

arg1

The unit you are following. Not necessarily your target (in case of right-clicking a group member's portrait or using the "/follow" command).

Fired when the player ceases following an ally