Detect if already running

[SkiFreak]

Is there a way to have the application (a compiled AutoIt script) detect if it already running?

Using ProcessExists is not an option as it will always detect itself when started.

I need to be able to ensure that there is only ever one instance of the application running at any one time.

A bit more info:

As might have been seen from my previous post, I am running a continuous loop and checking for changes in a file. There is no "window" that I can check for, the only thing that identifies that the application is running is that there is a tray icon.

Is this possible?

[Helge]

Voila !

[SkiFreak]

Voila !

Seek and ye shall find (sometimes).

Next time I guess that I will have to look a little bit harder.

Thanks for showing me the light at the end of the tunnel...

[JOHNe]

Is there a way to have the application (a compiled AutoIt script) detect if it already running?

Using ProcessExists is not an option as it will always detect itself when started.

I need to be able to ensure that there is only ever one instance of the application running at any one time.

A bit more info:

As might have been seen from my previous post, I am running a continuous loop and checking for changes in a file. There is no "window" that I can check for, the only thing that identifies that the application is running is that there is a tray icon.

Is this possible?

Hello ..have you looked at Singleton :">

;Singleton - To check to see that App runs once only

#include <Misc.au3>

Singleton("123456789");Create a unique value

Func Singleton($semaphore)

Local $ERROR_ALREADY_EXISTS = 183

DllCall("kernel32.dll", "int", "CreateSemaphore", "int", 0, "long", 1, "long", 1, "str", $semaphore)

Local $lastError = DllCall("kernel32.dll", "int", "GetLastError")

If $lastError[0] = $ERROR_ALREADY_EXISTS Then

MsgBox(48, "What again....??", "The software is already running.... Dummy!! ");Error message

Exit -1

EndIf

EndFunc ;Singleton end

[Cookie]

This works for me

If WinExist("Program_name")

MsgBox(0, "Error", "Program already running")

Exit

Endif

GuiCreate("Progam_name",100,100)

Program_name is the name where you create the gui with

Edited October 9, 2006 by Cookie

[SmOke_N]

This works for me

If WinExist("Program_name")

MsgBox(0, "Error", "Program already running")

Exit

Endif

GuiCreate("Progam_name",100,100)

Program_name is the name where you create the gui with

If the end-user changes your .exe name to something common, you'll run into an issue there. _SingleTon() is probably the best option here.

[this-is-me]

If the end-user changes your .exe name to something common, you'll run into an issue there. _SingleTon() is probably the best option here.

... as opposed to a _TwoTon() function ...

[JSThePatriot]

... as opposed to a _TwoTon() function ...

Wouldnt that be _DoubleTon()?

JS

[this-is-me]

Arrrrgh... Yes it would.

[JSThePatriot]

Arrrrgh... Yes it would.

hehe... but I generally pun the same way

JS

[Richard Robertson]

Why not use the AutoIt window? Set it in a way that no other window could possibly do the same thing. Something like "fhvhjbhdsbcjkndhvbhjvggahkhdhfbrhvbh"? Just use the window AutoIt always makes if your script has none.