Returns the length of a single iteration of this AnimationTimeline.
Assembly: PresentationCore (in PresentationCore.dll)
This method provides the implementation for GetNaturalDuration and should not be called directly from your code.Notes to Implementers
This method should be implemented by classes that need to provide a custom natural Duration when the Duration property is set to Automatic. If the natural duration cannot be determined, this method should return Automatic.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)