Occurs when specific settings that control text size are changed.
[Browsable(false)] public event EventHandler SizeChanged
<Browsable(False)> Public Event SizeChanged As EventHandler
The SizeChanged event's data class is EventArgs.
This event occurs when the AppearanceObject.Font, AppearanceObject.TextOptions or AppearanceObject.Options property of objects that are stored in the collection is changed. It is also fired by the AppearanceObject.EndUpdate method.
The BaseAppearanceCollection.Changed event is called when any setting is changed (including the ones listed above).