StylusPointCollection Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Represents a collection of related StylusPoint objects.
System.Windows.DependencyObject
System.Windows.PresentationFrameworkCollection(Of StylusPoint)
System.Windows.Input.StylusPointCollection
Assembly: System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.
'Declaration Public NotInheritable Class StylusPointCollection _ Inherits PresentationFrameworkCollection(Of StylusPoint)
<StylusPointCollection> oneOrMoreStylusPoints </StylusPointCollection>
XAML Values
Value | Description |
|---|---|
oneOrMoreStylusPoints | One or more StylusPoint object elements. |
The StylusPointCollection type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | StylusPointCollection | Initializes a new instance of the StylusPointCollection class. |
| Name | Description | |
|---|---|---|
![]() | Count | Gets the number of elements contained in the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
![]() | IsFixedSize | Gets a value indicating whether the PresentationFrameworkCollection(Of T) has a fixed size. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | IsReadOnly | Gets a value indicating whether the PresentationFrameworkCollection(Of T) is read-only. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | IsSynchronized | Gets a value indicating whether access to the PresentationFrameworkCollection(Of T) is synchronized (thread safe). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | Item | Gets or sets the element at the specified index. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | SyncRoot | Gets an object that can be used to synchronize access to the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
| Name | Description | |
|---|---|---|
![]() | Add(T) | Adds an item to the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | Add(StylusPointCollection) | Adds a collection of StylusPoint objects to the collection. |
![]() | CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
![]() | Clear | Removes all items from the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
![]() | Contains | Determines whether the PresentationFrameworkCollection(Of T) contains a specific value. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | CopyTo(T(), Int32) | Copies the elements of the PresentationFrameworkCollection(Of T) to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | CopyTo(Array, Int32) | Copies the elements of the PresentationFrameworkCollection(Of T) to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | 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 Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
![]() | GetEnumerator | Returns an enumerator that iterates through a collection. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | 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.) |
![]() | IndexOf | Determines the index of a specific item in the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | Insert | Inserts an item to the PresentationFrameworkCollection(Of T) at the specified index. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | 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.) |
![]() | Remove | Removes the first occurrence of a specific object from the PresentationFrameworkCollection(Of T). (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | RemoveAt | Removes the item at the specified index. (Inherited from PresentationFrameworkCollection(Of T).) |
![]() | 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.) |
The StylusPointCollection keeps track of the StylusPoint objects that define the geometry of the Stroke object.
A StylusPointCollection can belong to more than one Stroke object; however, the only way to do this is by assigning an existing StylusPoints value of one Stroke to another using code.
The XAML syntax for properties that use a StylusPoint is potentially an example of implicit collection syntax, in which you can omit an actual StylusPointCollection object element. However, prepopulating an InkPresenter with strokes and stylus points is not a common technique; usually you start with a blank Strokes collection and capture strokes into the collection as user input with run-time code.
The following code example iterates through stylus points of the strokes drawn in the first InkPresenter control to display its mirror image in the second InkPresenter control.
Private MyStroke As Stroke
Public Sub New()
MyBase.New()
InitializeComponent()
SetBoundaryForIP1()
SetBoundaryForIP2()
End Sub
'A new stroke object, MyStroke, is created and is added to the StrokeCollection object
'of the InkPresenter, MyIP1
Private Sub MyIP1_MouseLeftButtonDown(ByVal sender As Object, ByVal e As MouseEventArgs)
MyIP1.CaptureMouse()
Dim MyStylusPointCollection As StylusPointCollection = New StylusPointCollection
MyStylusPointCollection.Add(e.StylusDevice.GetStylusPoints(MyIP1))
MyStroke = New Stroke(MyStylusPointCollection)
MyIP1.Strokes.Add(MyStroke)
End Sub
'StylusPoint objects are collected from the MouseEventArgs and added to MyStroke
Private Sub MyIP1_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
If (Not (MyStroke) Is Nothing) Then
MyStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(MyIP1))
End If
End Sub
'MyStroke is completed
Private Sub MyIP1_LostMouseCapture(ByVal sender As Object, ByVal e As MouseEventArgs)
MyStroke = Nothing
End Sub
'Create the mirror image of the stroke collection in MyIP1 and adding it to MyIP2
Private Sub BtMirror_Click(ByVal sender As Object, ByVal e As EventArgs)
'Iterate through the Strokes in the StrokeCollection of MyIP1
For Each stroke As Stroke In MyIP1.Strokes
Dim newcollection As StylusPointCollection = New StylusPointCollection
'Iterate through the stylus points of each stroke in MyIP1
For Each p As StylusPoint In stroke.StylusPoints
'Create the mirror image
Dim newpoint As StylusPoint = New StylusPoint
newpoint.X = (MyIP1.ActualWidth - p.X)
newpoint.Y = p.Y
newcollection.Add(newpoint)
Next
'Add the mirror image to MyIP2
Dim newStroke As Stroke = New Stroke(newcollection)
MyIP2.Strokes.Add(newStroke)
Next
End Sub





