Manipulation​Inertia​Starting​Routed​Event​Args Manipulation​Inertia​Starting​Routed​Event​Args Manipulation​Inertia​Starting​Routed​Event​Args Manipulation​Inertia​Starting​Routed​Event​Args Class


Provides data for the ManipulationInertiaStarting event.

public : sealed class ManipulationInertiaStartingRoutedEventArgs : RoutedEventArgs, IManipulationInertiaStartingRoutedEventArgspublic sealed class ManipulationInertiaStartingRoutedEventArgs : RoutedEventArgs, IManipulationInertiaStartingRoutedEventArgsPublic NotInheritable Class ManipulationInertiaStartingRoutedEventArgs Inherits RoutedEventArgs Implements IManipulationInertiaStartingRoutedEventArgs// This API is not available in Javascript.
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)

Inherited Members

Inherited properties


The following code example shows scenario 4 from the Input sample. This code shows some usage patterns for direct manipulation using the ManipulationStarting, ManipulationStarted, ManipulationDelta, ManipulationInertiaStarting, and ManipulationCompleted events.

private TransformGroup _transformGroup;
private MatrixTransform _previousTransform;
private CompositeTransform _compositeTransform;
private bool forceManipulationsToEnd;

public Scenario4()
    forceManipulationsToEnd = false;
    ManipulateMe.ManipulationStarting += 
        new ManipulationStartingEventHandler(
    ManipulateMe.ManipulationStarted += 
        new ManipulationStartedEventHandler(
    ManipulateMe.ManipulationDelta += 
        new ManipulationDeltaEventHandler(
    ManipulateMe.ManipulationCompleted += 
        new ManipulationCompletedEventHandler(
    ManipulateMe.ManipulationInertiaStarting += 
        new ManipulationInertiaStartingEventHandler(

private void InitManipulationTransforms()
    _transformGroup = new TransformGroup();
    _compositeTransform = new CompositeTransform();
    _previousTransform = new MatrixTransform() { 
        Matrix = Matrix.Identity };


    ManipulateMe.RenderTransform = _transformGroup;

private void ManipulateMe_ManipulationStarting(object sender, 
    ManipulationStartingRoutedEventArgs e)
    forceManipulationsToEnd = false;
    e.Handled = true;

private void ManipulateMe_ManipulationStarted(
    object sender, ManipulationStartedRoutedEventArgs e)
    e.Handled = true;

private void ManipulateMe_ManipulationInertiaStarting(
    object sender, ManipulationInertiaStartingRoutedEventArgs e)
    e.Handled = true;

private void ManipulateMe_ManipulationDelta(
    object sender, ManipulationDeltaRoutedEventArgs e)
    if (forceManipulationsToEnd)

    _previousTransform.Matrix = _transformGroup.Value;

    Point center = _previousTransform.TransformPoint(
        new Point(e.Position.X, e.Position.Y));
    _compositeTransform.CenterX = center.X;
    _compositeTransform.CenterY = center.Y;

    _compositeTransform.Rotation = (e.Delta.Rotation * 180) / Math.PI;
    _compositeTransform.ScaleX = 
        _compositeTransform.ScaleY = e.Delta.Scale;
    _compositeTransform.TranslateX = e.Delta.Translation.X;
    _compositeTransform.TranslateY = e.Delta.Translation.Y;

    e.Handled = true;

private void ManipulateMe_ManipulationCompleted(object sender, 
    ManipulationCompletedRoutedEventArgs e)
    e.Handled = true;

private void Scenario4Reset(object sender, RoutedEventArgs e)

void Scenario4Reset()
    forceManipulationsToEnd = true;
    ManipulateMe.RenderTransform = null;
Private _transformGroup As TransformGroup
Private _previousTransform As MatrixTransform
Private _compositeTransform As CompositeTransform
Private forceManipulationsToEnd As Boolean

Public Sub New()
    forceManipulationsToEnd = False
    AddHandler ManipulateMe.ManipulationStarting, AddressOf ManipulateMe_ManipulationStarting
    AddHandler ManipulateMe.ManipulationStarted, AddressOf ManipulateMe_ManipulationStarted
    AddHandler ManipulateMe.ManipulationDelta, AddressOf ManipulateMe_ManipulationDelta
    AddHandler ManipulateMe.ManipulationCompleted, AddressOf ManipulateMe_ManipulationCompleted
End Sub

''' <summary>
''' Invoked when this page is about to be displayed in a Frame.
''' </summary>
''' <param name="e">Event data that describes how this page was reached.  The Parameter
''' property is typically used to configure the page.</param>
Protected Overrides Sub OnNavigatedTo(e As NavigationEventArgs)
End Sub

Private Sub InitManipulationTransforms()
    _transformGroup = New TransformGroup()
    _compositeTransform = New CompositeTransform()
    _previousTransform = New MatrixTransform() With { _
        .Matrix = Matrix.Identity _


    ManipulateMe.RenderTransform = _transformGroup
End Sub

Private Sub ManipulateMe_ManipulationStarting(sender As Object, e As ManipulationStartingRoutedEventArgs)
    forceManipulationsToEnd = False
    e.Handled = True
End Sub

Private Sub ManipulateMe_ManipulationStarted(sender As Object, e As ManipulationStartedRoutedEventArgs)
    e.Handled = True
End Sub

Private Sub ManipulateMe_ManipulationDelta(sender As Object, e As ManipulationDeltaRoutedEventArgs)
    If forceManipulationsToEnd Then
        Exit Sub
    End If

    _previousTransform.Matrix = _transformGroup.Value

    Dim center As Point = _previousTransform.TransformPoint(New Point(e.Position.X, e.Position.Y))
    _compositeTransform.CenterX = center.X
    _compositeTransform.CenterY = center.Y

    _compositeTransform.Rotation = (e.Delta.Rotation * 180) / Math.PI
    _compositeTransform.ScaleX = InlineAssignHelper(_compositeTransform.ScaleY, e.Delta.Scale)
    _compositeTransform.TranslateX = e.Delta.Translation.X
    _compositeTransform.TranslateY = e.Delta.Translation.Y

    e.Handled = True
End Sub

Private Sub ManipulateMe_ManipulationCompleted(sender As Object, e As ManipulationCompletedRoutedEventArgs)
    e.Handled = True
End Sub

Private Sub Scenario4ResetMethod(sender As Object, e As RoutedEventArgs)
End Sub

Private Sub Reset()
    forceManipulationsToEnd = True
    ManipulateMe.RenderTransform = Nothing
End Sub
Private Shared Function InlineAssignHelper(Of T)(ByRef target As T, value As T) As T
    target = value
    Return value
End Function


ManipulationInertiaStartingRoutedEventArgs() ManipulationInertiaStartingRoutedEventArgs() ManipulationInertiaStartingRoutedEventArgs() ManipulationInertiaStartingRoutedEventArgs()

Initializes a new instance of the ManipulationInertiaStartingRoutedEventArgs class.

public : ManipulationInertiaStartingRoutedEventArgs()public ManipulationInertiaStartingRoutedEventArgs()Public Sub New()// This API is not available in Javascript.


Container Container Container Container

Gets the UIElement that is considered the container of the manipulation.

public : UIElement Container { get; }public UIElement Container { get; }Public ReadOnly Property Container As UIElement// This API is not available in Javascript.
UIElement UIElement UIElement UIElement

The UIElement that is considered the container of the manipulation.


Cumulative Cumulative Cumulative Cumulative

Gets the overall changes since the beginning of the manipulation.

public : ManipulationDelta Cumulative { get; }public ManipulationDelta Cumulative { get; }Public ReadOnly Property Cumulative As ManipulationDelta// This API is not available in Javascript.
ManipulationDelta ManipulationDelta ManipulationDelta ManipulationDelta

The overall changes since the beginning of the manipulation.

Delta Delta Delta Delta

Gets the most recent changes of the current manipulation, as a ManipulationDelta.

public : ManipulationDelta Delta { get; }public ManipulationDelta Delta { get; }Public ReadOnly Property Delta As ManipulationDelta// This API is not available in Javascript.
ManipulationDelta ManipulationDelta ManipulationDelta ManipulationDelta

The most recent changes of the current manipulation.

ExpansionBehavior ExpansionBehavior ExpansionBehavior ExpansionBehavior

Get or sets the rate of slowdown of expansion inertial movement.

public : InertiaExpansionBehavior ExpansionBehavior { get; set; }public InertiaExpansionBehavior ExpansionBehavior { get; set; }Public ReadWrite Property ExpansionBehavior As InertiaExpansionBehavior// This API is not available in Javascript.

Handled Handled Handled Handled

Gets or sets a value that marks the routed event as handled. A true value for Handled prevents most handlers along the event route from handling the same event again.

public : PlatForm::Boolean Handled { get; set; }public bool Handled { get; set; }Public ReadWrite Property Handled As bool// This API is not available in Javascript.
PlatForm::Boolean bool bool bool

true to mark the routed event handled. false to leave the routed event unhandled, which permits the event to potentially route further and be acted on by other handlers. The default is false.

See Also

PointerDeviceType PointerDeviceType PointerDeviceType PointerDeviceType

Gets the PointerDeviceType for the pointer device involved in the manipulation.

public : PointerDeviceType PointerDeviceType { get; }public PointerDeviceType PointerDeviceType { get; }Public ReadOnly Property PointerDeviceType As PointerDeviceType// This API is not available in Javascript.

RotationBehavior RotationBehavior RotationBehavior RotationBehavior

Gets information about the rotation information associated with the manipulation for this event occurrence.

public : InertiaRotationBehavior RotationBehavior { get; set; }public InertiaRotationBehavior RotationBehavior { get; set; }Public ReadWrite Property RotationBehavior As InertiaRotationBehavior// This API is not available in Javascript.

TranslationBehavior TranslationBehavior TranslationBehavior TranslationBehavior

Gets information about the translation information associated with the manipulation for this event occurrence.

public : InertiaTranslationBehavior TranslationBehavior { get; set; }public InertiaTranslationBehavior TranslationBehavior { get; set; }Public ReadWrite Property TranslationBehavior As InertiaTranslationBehavior// This API is not available in Javascript.

Velocities Velocities Velocities Velocities

Gets the rates of the most recent changes to the manipulation.

public : ManipulationVelocities Velocities { get; }public ManipulationVelocities Velocities { get; }Public ReadOnly Property Velocities As ManipulationVelocities// This API is not available in Javascript.
ManipulationVelocities ManipulationVelocities ManipulationVelocities ManipulationVelocities

The rates of the most recent changes to the manipulation.