determine if application is already running

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Hi,

is there a simple way in .Net to determine if there is already an instance
running of an application ? I want to avoid that a user starts an application
twice.

Thanks,

Koert
 
Might be something in the system.diagnostics namespace that can do what you
want...
 
Imran Koradia said:
Take a look at the singleton design pattern.
Click to expand...

That won't help at all, as the singleton would be local to the process.
theory of the singleton design pattern:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnbda/html/singletondespatt.asp
in VB.NET:
http://www.abstractvb.com/code.asp?A=1096
Click to expand...

That uses a heavyweight mutex for no good reason. SyncLock is a better
approach.
in C#:
http://www.c-sharpcorner.com/Code/2003/Jan/SingletonPattern.asp
Click to expand...

That implementation isn't threadsafe at all.
http://www.codeproject.com/csharp/design_patterns_in_c_.asp
Click to expand...

That one is (in the same way as the MS one) but doesn't point out the
simpler patterns available.

See http://www.pobox.com/~skeet/csharp/singleton.html for my take on
singletons.
 
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