_Singleton() Usage..?

[cypher175]

is there anyway to use the _Singleton() Function without specifying the exact process name in between the ("Brackets")

So no matter what the script.exe is named only 1 Instance of it can run at a time..??

[dbzfanatic]

If it's your script you can use

If _Singleton(@scriptname) = 0 Then
MsgBox(0,"Error","The script is already running.")
Exit
Endif

[cypher175]

If it's your script you can use

If _Singleton(@scriptname) = 0 Then
MsgBox(0,"Error","The script is already running.")
Exit
Endif

thank you..

[PsaltyDS]

If it's your script you can use

If _Singleton(@scriptname) = 0 Then
MsgBox(0,"Error","The script is already running.")
Exit
Endif

The macro @ScriptName will be interpreted at compile time. If you compile again with a different script name (i.e. MyScript_v1.au3 and MyScript_v2.au3) then it will not recognize an instance of the other version.

The string you provide _Singleton() can be as much as you need to uniquely identify the script:

If _Singleton("MyTestScriptWhichMustOnlyHaveOneRunningInstance_0123_4567_89AB_CDEF") = 0 Then
MsgBox(0,"Error","The script is already running.")
Exit
Endif

[cypher175]

@ PsaltyDS

I not really sure what you are concluding..??

Are you say that all i rally need to do is just use _Singleton() just like that with no name inside the brackets or what exactly are you saying to do..??

[rasim]

cypher175

Singleton using Mutex object:

Dim $hMutex = DllCall("kernel32.dll", "hwnd", "OpenMutex", "int", 0x1F0001, "int", False, "str", "MyProgramUniqueName")

If $hMutex[0] Then
    MsgBox(64, "MyProgram", "Program is already running")
    Exit
EndIf

DllCall("kernel32.dll", "hwnd", "CreateMutex", "int", 0, "int", False, "str", "MyProgramUniqueName")

[trancexx]

@ PsaltyDS

I not really sure what you are concluding..??

Are you say that all i rally need to do is just use _Singleton() just like that with no name inside the brackets or what exactly are you saying to do..??

May I?

He's saying that you shouldn't use @ScriptName because that can be changed (by you or whoever working with you on some project when making new versions of it, for example).

Use "solid" string for that purposes. I would suggest generating GUID, but I guess "MyTestScriptWhichMustOnlyHaveOneRunningInstance_0123_4567_89AB_CDEF" is fine too.

Edited November 6, 2008 by trancexx

[PsaltyDS]

cypher175

Singleton using Mutex object:

Dim $hMutex = DllCall("kernel32.dll", "hwnd", "OpenMutex", "int", 0x1F0001, "int", False, "str", "MyProgramUniqueName")

If $hMutex[0] Then
    MsgBox(64, "MyProgram", "Program is already running")
    Exit
EndIf

DllCall("kernel32.dll", "hwnd", "CreateMutex", "int", 0, "int", False, "str", "MyProgramUniqueName")

That's how _Singleton() already works. Check the code for it inside the Misc.au3 UDF.

May I?

He's saying that you shouldn't use @ScriptName because that can be changed (by you or whoever working with you on some project when making new versions of it, for example).

Use "solid" string for that purposes. I would suggest generating GUID, but I guess "MyTestScriptWhichMustOnlyHaveOneRunningInstance_0123_4567_89AB_CDEF" is fine too.

Exactly right. The string I provided was meant to be a little over the top and therefore mildly humorous, but nobody ever seems to find the same things funny that I do...

[trancexx]

I would like to express strong disagreement with some parts of the last post here (prior this one).

I had few laughs (that person related) here lately.