IXRSplineDoubleKeyFrame (Windows Embedded CE 6.0)
1/6/2010
This class represents an animation segment that animates from the float value of the previous key frame to its own target float value by using splined interpolation.
Syntax
class IXRSplineDoubleKeyFrame : public IXRDoubleKeyFrame
Methods
| Method | Description |
|---|---|
Retrieves two control points that define animation progress for this key frame. |
|
Sets two control points that define animation progress for this key frame. |
Remarks
You can use this class to animate a float value along a set of key frames by putting it in an IXRDoubleKeyFrameCollection that belongs to an IXRDoubleAnimationUsingKeyFrames object. A key frame defines a segment of the IXRDoubleAnimationUsingKeyFrames object to which it belongs. Each key frame has a target float value 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.
Spline key frames like IXRSplineDoubleKeyFrame create a variable transition between values that is determined by the key-spline. You can set the key-spline by calling IXRSplinePointKeyFrame::SetKeySpline. Splined interpolation can be used to achieve more realistic timing effects such as acceleration and deceleration.
You can also define a spline double key-frame in Microsoft Silverlight 2 XAML. For information about the differences between XAML in Silverlight for Windows Embedded and Silverlight 2, see Differences Between Silverlight for the Web and Silverlight for Windows Embedded. For more information about how to define this element in the source XAML for your application, see this Microsoft Web site.
Note
The name of this XAML element is generated by the Microsoft Expression Blend 2 IDE and includes "Double" in order to maintain parity with the name of its equivalent XAML element in the source XAML markup. However, in Silverlight, this object represents a float instead of a double.
Inheritance Hierarchy
IXRSplineDoubleKeyFrame
.NET Framework Equivalent
System.Windows.Media.Animation.SplineDoubleKeyFrame
Requirements
| Header | XamlRuntime.h |
| sysgen | SYSGEN_XAML_RUNTIME |
| Windows Embedded CE | Windows Embedded CE 6.0 R3 |
See Also
Reference
Classes for Visual Appearance and Behavior