StylusDevice.Synchronize Method

Definition

Namespace:

System.Windows.Input

Assembly:

PresentationCore.dll

Synchronizes the cursor and the user interface.

C#

public void Synchronize();

Examples

The following example demonstrates how to return an element that is under the cursor. Calling Synchronize ensures that DirectlyOver returns the correct element.

C#

void AnimateButton()
{
    TranslateTransform buttonTransform = new TranslateTransform(0, 0);
    button1.RenderTransform = buttonTransform;

    // Animate the Button's position.
    DoubleAnimation myDoubleAnimation = new DoubleAnimation();
    myDoubleAnimation.From = 0;
    myDoubleAnimation.By = 100;
    myDoubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(5));
    myDoubleAnimation.AutoReverse = true;
    myDoubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

    buttonTransform.BeginAnimation(TranslateTransform.XProperty, myDoubleAnimation);       
}

C#

void SynchronizeCurrentStylus()
{
    StylusDevice currentStylus = Stylus.CurrentStylusDevice;

    currentStylus.Synchronize();
    UIElement element = (UIElement) currentStylus.DirectlyOver;
    output.Text += "The stylus is over " + element.ToString() + "\r\n";
}

Remarks

Applications may need to locate the element that the cursor is positioned over. If the application uses animation, the DirectlyOver method might return an element that has moved out from under the cursor. Call Synchronize to be sure that DirectlyOver returns the proper element.

Applies to