Occurs just before any tooltip on the element is closed.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Marking the event as handled does not cancel closing the tooltip. Once the tooltip is displayed, closing the tooltip is done only in response to user interaction with the UI.
This event cannot be an EventTrigger in a style. This is because the identifier field of this event re-uses an implementation from a service that does not expose add/remove event methods for the service-level event.