Mirror keys for multiboxing MMORPG games like WOW/LOTRO


public class UdpKeyPost
{
	private static int m_timeout_milliseconds = 500;
    private static long m_timeout_ticks = System.TimeSpan.TicksPerMillisecond * m_timeout_milliseconds;
    private System.DateTime m_LastKeydownMessageDateTime = new System.DateTime(0);
	private UdpKeyPostManager m_UdpKeyPostManager = null;
    private System.IntPtr m_WindowHandle = System.IntPtr.Zero;
	private UdpKeyInfo m_UdpKeyInfo = null;
	//private bool m_Validated = false;
	private bool m_BackgroundWorker_cancelled = false;
	private bool m_BackgroundWorker_postedOne = false;
	private bool m_BackgroundWorker_isFinished = false;
    private System.ComponentModel.BackgroundWorker m_BackgroundWorker = new System.ComponentModel.BackgroundWorker(); //Asynchronous Non-Blocking Background Worker
	private void m_BackgroundWorker_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
	{
		try {
            while (!((System.DateTime.Now.Ticks - m_LastKeydownMessageDateTime.Ticks) > m_timeout_ticks))
            {
				System.Threading.Thread.Sleep(m_timeout_milliseconds);
				lock (m_UdpKeyPostManager) {
					m_LastKeydownMessageDateTime = m_UdpKeyPostManager.LastKeydown(m_WindowHandle, m_UdpKeyInfo);
				}
			}
		} catch (System.Exception ex) {
			System.Diagnostics.Debug.WriteLine(ex.ToString());
		}
	}

	private void m_BackgroundWorker_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
	{
		System.Diagnostics.Debug.WriteLine("completed;    cancelled: " + m_BackgroundWorker_cancelled.ToString() + "     posted: " + m_BackgroundWorker_postedOne.ToString());
		if (((!m_BackgroundWorker_cancelled) && (!m_BackgroundWorker_postedOne))) {
			System.Diagnostics.Debug.WriteLine("keyup timeout");
            RawInputHook.PostMessage(m_WindowHandle, System.Convert.ToInt32(m_UdpKeyInfo.Message | System.Convert.ToInt32(1)), m_UdpKeyInfo.VKey, m_UdpKeyInfo.lParamKeyUp);
			//keyup
			m_BackgroundWorker_postedOne = true;
			lock (m_UdpKeyPostManager) {
				m_UdpKeyPostManager.Remove(m_WindowHandle.ToString("X16") + "," + m_UdpKeyInfo.Device.ToString("X16") + "," + m_UdpKeyInfo.VKey.ToString("X4"));
			}
		}
		m_BackgroundWorker_isFinished = true;
	}

    public UdpKeyPost(UdpKeyPostManager KeyPostManager, System.IntPtr WindowHandle, UdpKeyInfo KeyInfo)
	{
        m_BackgroundWorker.DoWork += new System.ComponentModel.DoWorkEventHandler(m_BackgroundWorker_DoWork);
        m_BackgroundWorker.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(m_BackgroundWorker_RunWorkerCompleted);
		m_WindowHandle = WindowHandle;
		m_UdpKeyInfo = KeyInfo;
		m_UdpKeyPostManager = KeyPostManager;
		m_BackgroundWorker.WorkerReportsProgress = false;
		m_BackgroundWorker.WorkerSupportsCancellation = true;
		if (((m_WindowHandle !=System.IntPtr.Zero) && (m_UdpKeyInfo.Valid))) {
			//key down event
			if ((m_UdpKeyInfo.Message &System.Convert.ToUInt32(1)) == 0) {
                RawInputHook.PostMessage(m_WindowHandle, m_UdpKeyInfo.Message, m_UdpKeyInfo.VKey, m_UdpKeyInfo.lParam);
//				m_Validated = true;
                m_LastKeydownMessageDateTime = System.DateTime.Now;
			}
		}
		m_BackgroundWorker.RunWorkerAsync();
	}

	public void Cancel()
	{
		m_BackgroundWorker_cancelled = true;
		m_BackgroundWorker.CancelAsync();
		m_BackgroundWorker_isFinished = true;
	}

	public bool IsFinished {
		get { return m_BackgroundWorker_isFinished; }
	}
}