IXRLinearPointKeyFrame (Compact 2013)

Статья
04/19/2017

3/28/2014

This class defines an animation segment that uses linear interpolation to animate from the x-y point of the previous key frame to its own x-y point.

Syntax

class IXRLinearPointKeyFrame : public IXRPointKeyFrame

Inheritance Hierarchy

IXRDependencyObject

IXRPointKeyFrame

IXRLinearPointKeyFrame

Methods

This class defines no new methods. It inherits its methods from IXRLinearPointKeyFrame.

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

This class animates x-y point values along a set of key frames using an IXRPointKeyFrameCollection that belongs to an IXRPointAnimationUsingKeyFrames object.

A key frame defines a segment of the IXRPointAnimationUsingKeyFrames object that it belongs to. Each key frame has a target x-y point and a key-time. The key-time specifies the time at which the target value of the key frame is reached. A key frame animates from the target value of the previous key frame to its own target value. It starts when the previous key frame ends, and it ends when its own key-time is reached.

Linear key frames like IXRLinearPointKeyFrame interpolate smoothly between values.

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

You can also define a linear point key-frame 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 LinearPointKeyFrame Class on MSDN.

.NET Framework Equivalent

System.Windows.Media.Animation.LinearPointKeyFrame

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME

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