IUIAnimationTransitionLibrary interface

Defines a library of standard transitions.

When to implement

Client applications do not need to implement IUIAnimationTransitionLibrary.

When to use

Client applications use the methods provided by IUIAnimationTransitionLibrary to create standard transitions. An implementation is provided by UIAnimationTransitionLibrary.

Members

The IUIAnimationTransitionLibrary interface inherits from the IUnknown interface. IUIAnimationTransitionLibrary also has these types of members:

Methods

Methods

The IUIAnimationTransitionLibrary interface has these methods.

Method	Description
CreateAccelerateDecelerateTransition	Creates an accelerate-decelerate transition.
CreateConstantTransition	Creates a constant transition.
CreateCubicTransition	Creates a cubic transition.
CreateDiscreteTransition	Creates a discrete transition.
CreateInstantaneousTransition	Creates an instantaneous transition.
CreateLinearTransition	Creates a linear transition.
CreateLinearTransitionFromSpeed	Creates a linear-speed transition.
CreateParabolicTransitionFromAcceleration	Creates a parabolic-acceleration transition.
CreateReversalTransition	Creates a reversal transition.
CreateSinusoidalTransitionFromRange	Creates a sinusoidal-range transition.
CreateSinusoidalTransitionFromVelocity	Creates a sinusoidal-velocity transition.
CreateSmoothStopTransition	Creates a smooth-stop transition.

Remarks

Windows Animation includes a library of common transitions that developers can apply to variables through a storyboard. The parameters for specifying a transition depend on the type of transition. For some transitions, the duration of the transition is an explicit parameter; for others, the duration is determined by other parameters, such as speed or acceleration when the transition begins. A transition's initial value or velocity can be overridden if a discontinuous jump is desired, and duration can be queried after the transition is added to a storyboard.

If an application requires an effect that cannot be specified using the transition library, developers can implement custom transitions. A custom transition is created by first implementing the interpolator function for the transition, and then by using a factory object to generate transitions from interpolators. An interpolator must implement the IUIAnimationInterpolator interface; an implementation of the transition factory object is provided by UIAnimationTransitionFactory.

Examples

For an example that creates the transition library object, see Create the Main Animation Objects.

Requirements

Minimum supported client	Windows 7, Windows Vista and Platform Update for Windows Vista [desktop apps \| Windows Store apps]
Minimum supported server	None supported
Header	UIAnimation.h
IDL	UIAnimation.idl
DLL	UIAnimation.dll
IID	IID_IUIAnimationTransitionLibrary is defined as CA5A14B1-D24F-48b8-8FE4-C78169BA954E