Occurs when the rate at which time progresses for the timeline's clock changes.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
The current global speed of a timeline's clock changes in the following circumstances:
The clock changes direction because of its timeline's AutoReverse setting.
The clock is paused or resumed.
The clock becomes inactive or reactivates.
The CurrentGlobalSpeed of one of the clock's parent changes.
The event is useful for tracking when a timeline's clock becomes paused; in your event handler, use your storyboard's GetCurrentGlobalSpeed method or check the clock's IsPaused property to determine whether its clock is paused; compare this against a previously cached value to determine whether it changed.