Detecting that a program is already running

[Joecx]

Hi
Does anyone have the code or maybe give me a start on how to detect if my
program is already running if someone tries to run it again while it's already
running? I know I could do this with a dummy file by putting something in the
file while it's running and emptying the file when it's not running, but I was
hoping for something a little more professional. Has anyone done this yet?

Joe

 

[Herfried K. Wagner [MVP]]

* (e-mail address removed) (Joecx) scripsit:

Does anyone have the code or maybe give me a start on how to detect if my
program is already running if someone tries to run it again while it's already
running?

<URL:http://www.pobox.com/~skeet/csharp/faq/#one.application.instance>

 

[Matt S]

You could try something like...

-- Code starts --
If
Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Length >
0 Then
' exit application or display message
End If
-- Code ends --

Hope this helps.

 

[Cor Ligthert]

Herfried

For you to change

http://www.yoda.arachsys.com/csharp/faq/#one.application.instance




Cor

 

[Herfried K. Wagner [MVP]]

For you to change

http://www.yoda.arachsys.com/csharp/faq/#one.application.instance

This one works too, and I think it's the preferred one. Thanks for
making me aware of that.

 

[Herfried K. Wagner [MVP]]

You could try something like...

-- Code starts --
If
Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Length >
0 Then
' exit application or display message
End If

Notice that the application name isn't necessarily unique.

 

[Matt S]

Good point. Noted.

Matt.

Notice that the application name isn't necessarily unique.

 

[Josip Medved]

-- Code starts --
If
Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Length
' exit application or display message
End If
-- Code ends --

Note that this code will detect it self. It should stand .Length > 1.
BTW ProcessName is not necessary unique.