/// <summary>
/// Removes a handler for the <see cref="E:TwistedLogik.Ultraviolet.UI.Presentation.Input.Keyboard.KeyDown"/>
/// attached event from the specified element.
/// </summary>
/// <param name="element">The element from which to remove the handler.</param>
/// <param name="handler">The handler to remove from the specified element.</param>
public static void RemoveKeyDownHandler(DependencyObject element, UpfKeyDownEventHandler handler)
{
Contract.Require(element, nameof(element));
Contract.Require(handler, nameof(handler));
IInputElementHelper.RemoveHandler(element, KeyDownEvent, handler);
}
/// <summary>
/// Adds a handler for the PreviewKeyDown 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 AddPreviewKeyDownHandler(DependencyObject element, UpfKeyDownEventHandler handler)
{
Contract.Require(element, "element");
Contract.Require(handler, "handler");
IInputElementHelper.AddHandler(element, PreviewKeyDownEvent, handler);
}
/// <summary>
/// Removes a handler for the KeyDown attached event from the specified element.
/// </summary>
/// <param name="element">The element from which to remove the handler.</param>
/// <param name="handler">The handler to remove from the specified element.</param>
public static void RemoveKeyDownHandler(DependencyObject element, UpfKeyDownEventHandler handler)
{
Contract.Require(element, "element");
Contract.Require(handler, "handler");
IInputElementHelper.RemoveHandler(element, KeyDownEvent, handler);
}
/// <summary>
/// Removes a handler for the <see cref="E:TwistedLogik.Ultraviolet.UI.Presentation.Input.Keyboard.PreviewKeyDown"/>
/// attached event from the specified element.
/// </summary>
/// <param name="element">The element from which to remove the handler.</param>
/// <param name="handler">The handler to remove from the specified element.</param>
public static void RemovePreviewKeyDownHandler(DependencyObject element, UpfKeyDownEventHandler handler)
{
Contract.Require(element, nameof(element));
Contract.Require(handler, nameof(handler));
IInputElementHelper.RemoveHandler(element, PreviewKeyDownEvent, handler);
}