IXRPointAnimationUsingKeyFrames (Compact 2013)

项目
04/19/2017

3/28/2014

This class represents an animation that animates the values in an XRPoint structure along a set of key frames over a specified duration.

Syntax

class IXRPointAnimationUsingKeyFrames : public IXRTimeline

Inheritance Hierarchy

IXRDependencyObject

IXRTimeline

IXRPointAnimationUsingKeyFrames

Methods

Method	Description
IXRPointAnimationUsingKeyFrames::GetKeyFrames	Retrieves the collection of IXRPointKeyFrame objects that define the animation.

Thread Safety

Members of this class are thread-safe if you previously called IXRApplication::CreateHostFromXaml and supplied it with an XRWindowCreateParams structure that has AllowsMultipleThreadAccess set to true.

Remarks

IXRPointAnimationUsingKeyFrames stores a collection of IXRPointKeyFrame objects that together define the key frames for the animation. The collection of target values for the key-frame animation is retrieved by the IXRPointAnimationUsingKeyFrames::GetKeyFrames method. Each IXRPointKeyFrame defines a segment of the animation with its own target value and key time. When the animation runs, it progresses from one key value to the next at the specified key times.

There are three kinds of IXRPointKeyFrame derived classes, one for each supported interpolation method: IXRLinearPointKeyFrame, IXRDiscretePointKeyFrame, and IXRSplinePointKeyFrame.

Unlike an IXRPointAnimation, an IXRPointAnimationUsingKeyFrames can have more than two target values.

You can use the methods inherited from the base class IXRTimeline to define the timeline for this animation.

When you create a class instance, use an IXRPointAnimationUsingKeyFramesPtr smart pointer instead of a raw interface pointer. For more information, see XRPtr<Interface>.

You can also define a point animation that uses key-frames in Microsoft Silverlight 3 XAML. For information about the differences between XAML in XAML for Windows Embedded and Silverlight 3, see Differences Between Microsoft Silverlight 3 and XAML for Windows Embedded. For more information about how to define this element in the source XAML for your application, see the PointAnimationUsingKeyFrames Class on MSDN.

.NET Framework Equivalent

System.Windows.Media.Animation.PointAnimationUsingKeyFrames

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME

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