using?System;
using?System.Collections.Generic;
using?System.Configuration;
using?System.Data;
using?System.Linq;
using?System.Windows;
using?System.Threading;

namespace?B1103492
{
????///?

????///?Interaction?logic?for?App.xaml
????///?

????public?partial?class?App?:?Application
????{
????????///?

????????///?The?main?entry?point?for?the?application.
????????///?


????????//?參考文獻：
????????//?http://www.codeproject.com/Articles/16901/Falling-Snow-on-Your-Desktop-The-C-Version
????????//?有改動
????????//?確保本電腦上只有一個本程序運行。

????????private?static?Mutex?mutex;
????????public?static?MainWindow?MyMainWindow;
????????public?static?notifyIcon?MyNotifyIcon;
????????private?void?Application_Startup（object?sender?StartupEventArgs?e）
??