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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Windows;
namespace FLY.AppHelper
{
public class AppJustOne
{
public AppJustOne(Application app)
{
app.Startup += new StartupEventHandler(app_Startup);
}
void app_Startup(object sender, StartupEventArgs e)
{
Process process = Process.GetCurrentProcess();
string name = process.ProcessName;
Process[] processes = Process.GetProcesses();
IEnumerable<Process> ps = from p in processes
where
(p.ProcessName == process.ProcessName) &&
(p.Id != process.Id) &&
(p.MainModule.FileName == process.MainModule.FileName) &&
(!p.HasExited)
select p;
try
{
if (ps.Count() >= 1)
{
MessageBoxResult r = MessageBox.Show(name + "已经运行， 是否关闭正在运行的，然后重启新的？", "警告", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
if (r == MessageBoxResult.Yes)
{
for (int i = 0; i < ps.Count(); i++)
{
Process p = ps.ElementAt(i);
p.Kill();
}
}
else
{
System.Environment.Exit(0);
}
}
}
catch
{
//当有进程正在关闭时，访问ps 就会出错
}
}
}
}