how to prevent application to run more than one instance ?

[Daylor]

how to prevent application to run more than one instance ?

 

[Kovan]

have a look at singleton pattern technique

 

[Chad Z. Hower aka Kudzu]

have a look at singleton pattern technique

How will that help to stop the user from launching two copies of the EXE?


--
Chad Z. Hower (a.k.a. Kudzu) - http://www.hower.org/Kudzu/
"Programming is an art form that fights back"


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[Corrado Cavalli [MVP]]

Use this code on Main()

Dim m as new Mutex(false, "_MUTEX")
if m.WaitOne(1,false) = false then Return

HTH

 

[Herfried K. Wagner [MVP]]

how to prevent application to run more than one instance ?

See:

<http://groups.google.com/groups?selm=#[email protected]>

 

[Herfried K. Wagner [MVP]]

have a look at singleton pattern technique

This may prevent the "user" from creating more than one instance of a
class, but it won't prevent him/her from starting more than one instance
of the application.

 

[Lloyd Sheen]

http://www.knowdotnet.com/articles/previnstance.html

 

[Herfried K. Wagner [MVP]]

http://www.knowdotnet.com/articles/previnstance.html

Notice that the process's name is not necessarily unique on the system.
There can be, for example, 2 different applications with process name
"Calculator" on the machine.