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Run Only One Copy Of Application

, 6 Nov 2011 CPOL
Yet another way to this is as follows: using System;using System.Collections.Generic;using System.Windows.Forms;using System.Threading;namespace OnlyOneInstance{ static class Program { [STAThread] static void Main() { bool...

Alternatives

Members may post updates or alternatives to this current article in order to show different approaches or add new features.

12 Apr 2011
KevinPorter
How about using a Mutex? This should also work for Terminal Services sessions. Use in Program.csstatic Mutex mut;try{ bool isOwned = false; mut = new Mutex(true, Application.ProductName + " MUTEX: {53A4988C-F91F-4054-9076-220AC5EC03F3}", out isOwned); if (!isOwned)...
25 Mar 2011
FDW
Maybe this is helpful, it tries to switch to the first running instance:namespace UltraSimple.Win{ static class Program { [System.Runtime.InteropServices.DllImport("user32.dll")] public static extern bool SetForegroundWindow(IntPtr hWnd); [STAThread] ...
19 Mar 2011
charles henington
5 alternatives  
Run Only One Copy Of Application
30 Mar 2011
tlhintoq
Just because we like C# doesn't mean we can't borrow from other .NET languages. I've always had good luck and less complication using VB's single instance methodology in my C# applications. This code would go in your program.cs file:/// /// We inherit from...
29 Mar 2011
Neil A. Harding
I actually use code like this, which allows me to detect a existing instance and to call the original instance with the command line (I expand any filenames present so that it can access the filenames even if the original path is different).string processName =...

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