/// <summary>
        /// 初始化窗体句柄消息接收函数
        /// </summary>
        private void InitailWinHand()
        {
            HwndSource hWndSource;
            WindowInteropHelper wih = new WindowInteropHelper(this);
            hWndSource = HwndSource.FromHwnd(wih.Handle);
            //添加处理程序 
            hWndSource.AddHook(new HwndSourceHook(MainWindowProc));
        }    
         private IntPtr MainWindowProc(IntPtr hwnd, int msg,  IntPtr lParam, IntPtr wParam, ref bool handled)
        {
            switch (msg)
            {
                //执行动作
 
            }
            return IntPtr.Zero;
        }

protected override void WndProc(ref System.Windows.Forms.Message m)
        {
            switch (m.Msg)
            {
                case 自定义消息:
                    
                    break;
                default:
                    base.WndProc(ref m);   // 调用基类函数处理其他消息。   
                    break;
            }
        }