public abstract class InputElementState<TElement> : IInputHandler  

protected InputElementState<TElement>(TElement element);  

protected TElement Element { get; set; }  

public virtual bool RequiresInputCapture { get; protected set; }  

public virtual void HandleEvent(InputEventArgs e);  

protected virtual void OnEvent(InputEventArgs e);  

protected virtual void OnKeyDown(KeyEventArgs e);  

protected virtual void OnKeyUp(KeyEventArgs e);  

protected virtual void OnLostMouseCapture(MouseEventArgs e);  

protected virtual void OnMouseDown(MouseButtonEventArgs e);  

protected virtual void OnMouseMove(MouseEventArgs e);  

protected virtual void OnMouseUp(MouseButtonEventArgs e);  

protected virtual void OnMouseWheel(MouseWheelEventArgs e);