次の方法で共有


IXRPolyBezierSegment (Compact 2013)

3/28/2014

This class represents one or more cubic Bézier curves.

Syntax

class IXRPolyBezierSegment : public IXRPathSegment

Inheritance Hierarchy

IXRDependencyObject

  IXRPathSegment

    IXRPolyBezierSegment

Methods

In addition to the methods inherited from IXRPathSegment, this class contains the following methods.

Name

Description

IXRPolyBezierSegment::GetPoints

Retrieves the IXRPointCollection that defines an IXRPolyBezierSegment object.

IXRPolyBezierSegment::SetPoints

Sets the IXRPointCollection that defines an IXRPolyBezierSegment object.

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

Use an IXRPathFigure object to store IXRPolyBezierSegment objects and other segments derived from IXRPathSegment.

A cubic Bézier curve is defined by four points: a starting point, an endpoint (point 3), and two control points (points 1 and 2). The starting point is the same as the endpoint of the previous segment. The two control points of a cubic Bézier curve attract parts of a line between the starting point and the endpoint and produce a curve. The curve does not necessarily pass through either of the control points.

IXRPolyBezierSegment specifies one or more cubic Bézier curves by setting the Points property to a collection of points. For a single Bézier curve, you can use IXRBezierSegment.

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

You can also define an IXRPolyBezierSegment object 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 PolyBezierSegment Class on MSDN.

.NET Framework Equivalent

System.Windows.Media.PolyBezierSegment

Requirements

Header

XamlRuntime.h

sysgen

SYSGEN_XAML_RUNTIME

See Also

Reference

Classes for Visual Appearance