StrokeCollection Class

StrokeCollection Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Represents a collection of Stroke objects.

Namespace:  System.Windows.Ink
Assembly:  System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.

public sealed class StrokeCollection : PresentationFrameworkCollection<Stroke>
<StrokeCollection .../>

The StrokeCollection type exposes the following members.

  NameDescription
Public methodStrokeCollectionInitializes a new instance of the StrokeCollection class.
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  NameDescription
Public propertyCountGets the number of elements contained in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public propertyDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertyIsFixedSizeGets a value indicating whether the PresentationFrameworkCollection<T> has a fixed size. (Inherited from PresentationFrameworkCollection<T>.)
Public propertyIsReadOnlyGets a value indicating whether the PresentationFrameworkCollection<T> is read-only. (Inherited from PresentationFrameworkCollection<T>.)
Public propertyIsSynchronizedGets a value indicating whether access to the PresentationFrameworkCollection<T> is synchronized (thread safe). (Inherited from PresentationFrameworkCollection<T>.)
Public propertyItemGets or sets the element at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Public propertySyncRootGets an object that can be used to synchronize access to the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
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  NameDescription
Public methodAddAdds an item to the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodClearRemoves all items from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodContainsDetermines whether the PresentationFrameworkCollection<T> contains a specific value. (Inherited from PresentationFrameworkCollection<T>.)
Public methodCopyTo(T[], Int32)Copies the elements of the PresentationFrameworkCollection<T> to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodCopyTo(Array, Int32)Copies the elements of the PresentationFrameworkCollection<T> to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetAnimationBaseValueReturns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodGetBoundsReturns the bounds of the strokes in the collection.
Public methodGetEnumeratorReturns an enumerator that iterates through a collection. (Inherited from PresentationFrameworkCollection<T>.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Public methodHitTestIndicates whether a specified StylusPointCollection intersects with a StrokeCollection object.
Public methodIndexOfDetermines the index of a specific item in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodInsertInserts an item to the PresentationFrameworkCollection<T> at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodRemoveRemoves the first occurrence of a specific object from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodRemoveAtRemoves the item at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate methodIEnumerable.GetEnumeratorReturns an enumerator that iterates through a collection. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodIList.AddAdds an item to the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodIList.ContainsDetermines whether the PresentationFrameworkCollection<T> contains a specific value. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodIList.IndexOfDetermines the index of a specific item in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodIList.InsertInserts an item to the PresentationFrameworkCollection<T> at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate propertyIList.ItemGets or sets the element at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodIList.RemoveRemoves the first occurrence of a specific object from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
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The Strokes property of the InkPresenter class uses the StrokeCollection object to store Stroke information.

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.


Stroke MyStroke;

//A new stroke object named MyStroke is created. MyStroke is added to the StrokeCollection of the InkPresenter named MyIP1
private void MyIP1_MouseLeftButtonDown(object sender, MouseEventArgs e)
{
    MyIP1.CaptureMouse();
    StylusPointCollection MyStylusPointCollection = new StylusPointCollection();
    MyStylusPointCollection.Add(e.StylusDevice.GetStylusPoints(MyIP1));
    MyStroke = new Stroke(MyStylusPointCollection);
    MyIP1.Strokes.Add(MyStroke);
}

//StylusPoint objects are collected from the MouseEventArgs and added to MyStroke
private void MyIP1_MouseMove(object sender, MouseEventArgs e)
{
    if (MyStroke != null)
        MyStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(MyIP1));
}

//MyStroke is completed
private void MyIP1_LostMouseCapture(object sender, MouseEventArgs e)
{
    MyStroke = null;
}

//Create the mirror image of the stroke collection in MyIP1 and adding it to MyIP2
private void BtMirror_Click(object sender, EventArgs e)
{
    //Iterate through the Strokes in the StrokeCollection of MyIP1
    foreach (Stroke stroke in MyIP1.Strokes)
    {
        StylusPointCollection newcollection = new StylusPointCollection();
        //Iterate through the stylus points of each stroke in MyIP1
        foreach (StylusPoint p in stroke.StylusPoints)
        {
            //Create the mirror image
            StylusPoint newpoint = new StylusPoint();
            newpoint.X = MyIP1.ActualWidth - p.X;
            newpoint.Y = p.Y;
            newcollection.Add(newpoint);
        }
        //Add the mirror image to MyIP2
        Stroke newStroke = new Stroke(newcollection);
        MyIP2.Strokes.Add(newStroke);
    }
}


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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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