473,721 Members | 1,763 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

way to check if program is already running

TM
Is there any way to check if another instance of my program is running if a
user executes it ?

I would like to warn the user if the program is already running to prevent
multiple instances.

Thanks
--
Tony

Nov 20 '05 #1
4 4515
Hi,

You need to use a mutex

http://groups.google.com/groups?selm...TNGP09.phx.gbl
Ken

-------------------
"TM" <no********@not hing.com> wrote in message
news:Ob******** ********@TK2MSF TNGP12.phx.gbl. ..
Is there any way to check if another instance of my program is running if a user executes it ?

I would like to warn the user if the program is already running to prevent
multiple instances.

Thanks
--
Tony

Nov 20 '05 #2
Check out my Tips and Tricks page.

http://www.bobpowell.net/tipstricks.htm
--
Bob Powell
Visit the GDI+ FAQ for articles, tips, tricks and code.
http://www.bobpowell.net/gdiplus_faq.htm

Read my blog
http://bobpowelldotnet.blogspot.com


"TM" <no********@not hing.com> wrote in message
news:Ob******** ********@TK2MSF TNGP12.phx.gbl. ..
Is there any way to check if another instance of my program is running if a user executes it ?

I would like to warn the user if the program is already running to prevent
multiple instances.

Thanks
--
Tony

Nov 20 '05 #3
Cor
Hi Bob,

Ken did give a link to a answer from Tom using managed code.

When you give a link to a solution using an API, than you have to tell in my
opinion what is not good on the managed code soluction.

Cor
Nov 20 '05 #4
* "TM" <no********@not hing.com> scripsit:
Is there any way to check if another instance of my program is running if a
user executes it ?

I would like to warn the user if the program is already running to prevent
multiple instances.


http://www.mvps.org/dotnet/dotnet/code/application/
-> "Nur eine Instanz einer Anwendung zulassen"

Just ignore the German language text and have a look at the code.

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet/>
Nov 20 '05 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

2
9643
by: Amrik Singh | last post by:
HI folks can anyone help a newbie here. I would like to know how I can check if my software is already running. So that if the user click s on the shortcut to start the progam again it maximises the already running program. tia Amrik
3
3678
by: Fabio Pliger | last post by:
Hi, is it possibile, in python, to check for an already running instance of an application? My problem is that, if my program i running and the user relaunch it, i don't want to open a new instance and have to instances of the same program running togheter... Can someone help me on this? Fabio P.
6
10524
by: Pierre-Yves | last post by:
Hello, I would like to prevent my perl program to be executed several times simultaneously (if the program is already running, I would like to display a message like "another instance of this program is already running, please try again in a couple of minutes). For doing this, I guess I have to check the running processes... but I don't know how to do that and how I can identify my program in the running processes.
22
3603
by: edgrsprj | last post by:
PROPOSED EARTHQUAKE FORECASTING COMPUTER PROGRAM DEVELOPMENT EFFORT Posted July 11, 2005 My main earthquake forecasting Web page is: http://www.freewebz.com/eq-forecasting/Data.html Newsgroup Readers: If you circulate copies of this report to groups of computer programmers at different universities etc. around the world then they might find the subject matter to be interesting.
4
6007
by: Nick Sinclair | last post by:
Hi all, I'm new to C. I have successfully written a small C program that acts as a "wrapper" around cgi scripts. These scripts perform admin tasks such as backing up etc. Obviously, The need for the "wrapper" was to get the scripts to run with "root" privileges. So far so good. I simply create a "URL shortcut" that some staff can double-click on to initiate the process. However, because I am creating these automated tasks for...
3
2952
by: Henry | last post by:
oHi, I want to check for a Windows form program if an instance of the prgram is already running: if yes the program's window should be activated and no second program instance should be started. How can I perform this task in VB.Net? Thanks in advance. --
14
9714
by: Alex K. | last post by:
Hi all I'd like to avoid starting the same c# application twice on the same computer. How do I check if it is already running? Thank you
1
2827
by: keri | last post by:
Hi, I use the below for the user to view their outlook calendar Sub DisplayInbox() Dim myolApp As Outlook.Application Dim myNameSpace As Outlook.NameSpace Dim myFolder As Outlook.MAPIFolder Set myolApp = CreateObject("Outlook.Application") Set myNameSpace = myolApp.GetNamespace("MAPI")
1
7377
by: =?Utf-8?B?WWFlbA==?= | last post by:
Hi, How can I check from C# code if outlook program if the process is already running? if not, I run outlook with: System.Diagnostics.Process.Start("OUTLOOK.EXE"); Thank you!
0
8840
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8730
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9367
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9215
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
0
8007
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
5981
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4753
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
3189
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2576
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.