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Check if another instance is already running


Submitted on: 11/15/2003 11:39:53 AM
By: Özgür Aytekin  
Level: Intermediate
User Rating: Unrated

Users have accessed this article 377 times.
(About the author)
     In this article, i will show you a method which determines if the program is already running.

Terms of Agreement:   
By using this article, you agree to the following terms...   
1) You may use this article in your own programs (and may compile it into a program and distribute it in compiled format for languages that allow it) freely and with no charge.   
2) You MAY NOT redistribute this article (for example to a web site) without written permission from the original author. Failure to do so is a violation of copyright laws.   
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In this article, i will show you a method which determines if the program is already running. I get with System.Diagnostics.Process.GetCurrentProcess().ProcessName the process name of the current program.

string strCurrentProcess = System.Diagnostics.Process.GetCurrentProcess().ProcessName;

I identify how many instances of the program are already running.


If they are more than one, then a message is show to the user.

if (System.Diagnostics.Process.GetProcessesByName(strCurrentProcess).Length > 1)
Console.WriteLine("Another instance of this program is already running.");

The code itself is listed below.

using System;
    namespace ConsoleApplication1
    	class Class1 {
    		static void Main(string[] args)
    			string strCurrentProcess = System.Diagnostics.Process.GetCurrentProcess().ProcessName;
    			if (System.Diagnostics.Process.GetProcessesByName(strCurrentProcess).Length > 1)
    				Console.WriteLine("Another instance of this program is already running.");
    				Console.ReadLine(); return;
    				Console.WriteLine("No another instance of this program is running.");
Özgür Aytekin (MCSD .NET, MCDBA) www.dotnetcracks.com

Other 1 submission(s) by this author


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