[C#]EXE可执行文件单独运行小技巧

这个问题是最近讨论区朋友问到的问题,把它记录在我的Blog里

这个问题是最近讨论区朋友问到的问题,把它记录在我的Blog里,如下：

EXE可执行文件已经运行了，如果我再去运行同样EXE档时，新的进程不再运行，
而是将原来的EXE可执行文件显示在最前面，如果EXE可执行文件是最小化的时候，先将它最大化后再显示在最前面，
outlook2003，迅雷、金山词霸2009就是这样的效果。

网络上有一个很好的解法，如下(C#)：

using System;<br>using System.Collections.Generic;<br>using System.Windows.Forms;<br>using System.Diagnostics;<br>using System.Runtime.InteropServices;<br>using System.Reflection;<br>namespace WindowsApplication3<br>{<br> static class Program<br> {<br> [STAThread]<br> static void Main()<br> {<br> //Get the running instance. <br> Process instance = RunningInstance();<br> if (instance == null)<br> {<br> System.Windows.Forms.Application.EnableVisualStyles();<br> System.Windows.Forms.Application.DoEvents();<br> //There isn't another instance, show our form. <br> Application.Run(new Form1());<br> }<br> else<br> {<br> //There is another instance of this process. <br> HandleRunningInstance(instance);<br> }<br> }<br> public static Process RunningInstance()<br> {<br> Process current = Process.GetCurrentProcess();<br> Process[] processes = Process.GetProcessesByName(current.ProcessName);<br> //Loop through the running processes in with the same name <br> foreach (Process process in processes)<br> {<br> //Ignore the current process <br> if (process.Id != current.Id)<br> {<br> //Make sure that the process is running from the exe file. <br> if (Assembly.GetExecutingAssembly().Location.Replace("/", "\") == current.MainModule.FileName)<br> {<br> //Return the other process instance. <br> return process;<br> }<br> }<br> }<br> //No other instance was found, return null. <br> return null;<br> }<br> public static void HandleRunningInstance(Process instance)<br> {<br> //Make sure the window is not minimized or maximized <br> ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL);<br> //Set the real intance to foreground window<br> SetForegroundWindow(instance.MainWindowHandle);<br> }<br> [DllImport("User32.dll")]<br> private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);<br> [DllImport("User32.dll")]<br> private static extern bool SetForegroundWindow(IntPtr hWnd);<br> //1:normal<br> //2:minimized<br> //3:maximized<br> private const int WS_SHOWNORMAL = 3;<br> }<br>}

参考网址：
http://www.blueshop.com.tw/board/show.asp?subcde=BRD20090213164530GII&fumcde=FUM20050124192253INM#BRD20090215180413HRO
http://www.cnblogs.com/ghostljj/archive/2007/10/02/912979.html

原文:大专栏  [C#]EXE可执行文件单独运行小技巧