API Frame RegisterEvent

Registers the frame to an event. registered = Frame:RegisterEvent(eventName)

• eventName: - Name of the frame event.

• registered: - Returns true if the frame is successfully registered to the event. Returns false if the frame was already registered to this event. Throws an error if the event is invalid.

Event frames are generally notified in the order they were first registered. Holes get up filled up eagerly from the back. Insertions are always at the back.