Articolo
11/18/2011

Stroke Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents a collection of points that correspond to a stylus-down, move, and stylus-up sequence.

Inheritance Hierarchy

System.Object
System.Windows.DependencyObject
System.Windows.Ink.Stroke

Namespace: System.Windows.Ink
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public NotInheritable Class Stroke _
    Inherits DependencyObject

public sealed class Stroke : DependencyObject

<Stroke .../>

The Stroke type exposes the following members.

Constructors

	Name	Description
	Stroke()	Initializes a new instance of the Stroke class.
	Stroke(StylusPointCollection)	Initializes a new instance of the Stroke class with the specified StylusPointCollection.

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Properties

	Name	Description
	Dispatcher	Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
	DrawingAttributes	Gets or sets the properties of the stroke, such as Height, Width, Color, or OutlineColor.
	StylusPoints	Gets or sets the stylus points of the Stroke.

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Methods

	Name	Description
	CheckAccess	Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
	ClearValue	Clears the local value of a dependency property. (Inherited from DependencyObject.)
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetAnimationBaseValue	Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
	GetBounds	Retrieves the bounding box for the Stroke object.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetValue	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
	HitTest	Indicates whether a specified StylusPointCollection intersects with a Stroke object.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ReadLocalValue	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
	SetValue	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

A Stroke is the data object that is collected from a pointing device, such as a tablet pen or a mouse. The Stroke can be created and manipulated programmatically, and can be represented visually on an ink-enabled element, such as the InkPresenter. A Stroke contains information about both its position and appearance. The StylusPoints property is a collection of StylusPoint objects that specifies the geometry of the Stroke. The DrawingAttributes property specifies a stroke's appearance.

Examples

The following code example shows how can create a static stroke using XAML.

<Canvas>
    <InkPresenter x:Name="MyIP" Height="100" Width="200" Background="Transparent">
        <InkPresenter.Strokes>
            <StrokeCollection>
                <Stroke>
                    <Stroke.DrawingAttributes>
                        <DrawingAttributes Color="Red" OutlineColor="Black" Width="5" Height="5"/>
                    </Stroke.DrawingAttributes>
                    <Stroke.StylusPoints>
                        <StylusPoint X="50" Y="50"/>
                        <StylusPoint X="55" Y="55"/>
                        <StylusPoint X="60" Y="60"/>
                        <StylusPoint X="65" Y="65"/>
                        <StylusPoint X="70" Y="70"/>
                        <StylusPoint X="75" Y="75"/>
                    </Stroke.StylusPoints>
                </Stroke>
            </StrokeCollection>
        </InkPresenter.Strokes>
    </InkPresenter>
</Canvas>

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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