/// <summary>
/// Adds a handler for the <see cref="E:TwistedLogik.Ultraviolet.UI.Presentation.Input.Mouse.PreviewMouseWheel"/>
/// attached event to the specified element.
/// </summary>
/// <param name="element">The element to which to add the handler.</param>
/// <param name="handler">The handler to add to the specified element.</param>
public static void AddPreviewMouseWheelHandler(DependencyObject element, UpfMouseWheelEventHandler handler)
{
Contract.Require(element, nameof(element));
Contract.Require(handler, nameof(handler));
IInputElementHelper.AddHandler(element, PreviewMouseWheelEvent, handler);
}
/// <summary>
/// Removes a handler for the MouseWheel attached event from the specified element.
/// </summary>
/// <param name="element">The element to which to Remove the handler.</param>
/// <param name="handler">The handler to remove from the specified element.</param>
public static void RemoveMouseWheelHandler(DependencyObject element, UpfMouseWheelEventHandler handler)
{
Contract.Require(element, "element");
Contract.Require(handler, "handler");
IInputElementHelper.RemoveHandler(element, MouseWheelEvent, handler);
}
