Improving WPF Mouse Wheel Processing

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;

namespace Logitech.Windows.MotionFlow
{
  #region MotionTransferEventHandler
  public delegate void MotionTransferEventHandler(object sender, MotionTransferEventArgs e);
  #endregion
  
  #region MotionTransferEventArgs
  public class MotionTransferEventArgs : RoutedEventArgs
  {
    #region Initialization
    public MotionTransferEventArgs(IMotionInfo info, double delta)
    {
      RoutedEvent = MotionTransfer.TransferedEvent;
      MotionInfo = info;
      Delta = delta;
    }
    #endregion

    #region RoutedEventArgs
    protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
    {
      var handler = (MotionTransferEventHandler)genericHandler;
      handler(genericTarget, this);
    }
    #endregion

    #region Properties
    public IMotionInfo MotionInfo { get; private set; }
    public double           Delta { get; private set; }
    #endregion
  }
  #endregion

  #region NativeMotionTransferEventHandler
  public delegate void NativeMotionTransferEventHandler(object sender, NativeMotionTransferEventArgs e);
  #endregion
  
  #region NativeMotionTransferEventArgs
  public class NativeMotionTransferEventArgs : RoutedEventArgs
  {
    #region Initialization
    public NativeMotionTransferEventArgs(IMotionInfo info, int nativeDelta)
    {
      MotionInfo = info;
      NativeDelta = nativeDelta;
    }
    #endregion

    #region RoutedEventArgs
    protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
    {
      var handler = (NativeMotionTransferEventHandler)genericHandler;
      handler(genericTarget, this);
    }
    #endregion

    #region Properties
    public IMotionInfo MotionInfo { get; private set; }
    public int        NativeDelta { get; private set; }
    #endregion
  }
  #endregion
}