C#程序多用户只启动一个进程的方法[转载]

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http://greenlandy.blogbus.com/logs/14388828.html

[STAThread]

     private static void Main()

     {

         Application.EnableVisualStyles();

         Application.SetCompatibleTextRenderingDefault(false);

         var wb = new Form1();

         Process current = Process.GetCurrentProcess();

         bool newinstance = true;

         Process[] processes = Process.GetProcessesByName(current.ProcessName);

 

         //?历正在有相同名字??的例程  

         foreach (Process process in processes)

         {

             //忽略现有的例程  

             if (process.Id != current.Id)

             {

                 //确保例程从EXE文件??  

                 if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)

                 {

                     //?回另一个例程实例  

                     current = process;

                     newinstance = false;

                     break;

                 }

             }

         }

         if (newinstance)

         {

             Application.Run(wb);

         }

         else

         {

             ShowWindowAsync(current.MainWindowHandle, 1);

 

             //?置真实例程为foreground   window  

             SetForegroundWindow(current.MainWindowHandle);

         }

     }