Strip Character from String Not Working

[jdelaney]

When you call the ConsoleWrite, you are passing in the @error, which is set by FileGetVersion.

As soon as the ConsoleWrite is done, IT sets the @error=0.

So unless you set the @error to a variable, it will be overwritten by the ConsoleWrite.

[guinness]

|3ill,

There is nothing wrong with doing that as the @error isn't reset until after the ConsoleWrite().

Local $sReturn = MyError("@AutoItExe") ; intentionally wrong to test @error
ConsoleWrite("@error =  " & @error & @CRLF)
; <<<< @error reset now.
ConsoleWrite("@error =  " & @error & @CRLF) ; It should be set to 0.

Func MyError($sString)
    Return SetError(1000, 0, $sString)
EndFunc   ;==>MyError

Edited January 14, 2014 by guinness

[l3ill]

Ahhh... Got it.

Thanks for the clarification.

[neuronyx]

Interesting, I learned how the @error gets reset now. I never used it because it was unclear to me when this flag is actually reset. Does sending output to consolewrite always clear @error for future reference?

Thanks for the detailed explanations everyone. This forum is great! 

[guinness]

Calling any function resets @error unless set in the function.

[neuronyx]

Thanks guiness, is there any way to reset @error without a function or can you provide an example of the simplest possible function that I could use to reset @error. I suppose that and If then statement is not a function, correct. 

Thanks!

[jdelaney]

Not needed, but this would reset it (but if it resets on any function call, this is redundant):

SetError(0)

DirGetSize("doesnt exist")
ConsoleWrite(@error & @CRLF)
SetError(5)
ConsoleWrite(@error & @CRLF)
SetError(0)
ConsoleWrite(@error & @CRLF)

output:

1

5

0

helpfile remarks:

Remarks

When entering a function @error is set to 0. Unless SetError() is called, then @error will remain 0 after the function has ended. This means that in order for @error to be set after a function, it must be explicitly set. This also means you may need to backup the status of @error in a variable if you are testing it in a While-WEnd loop.
The extended parameter is optional. It is only provided as a way to set both @error and @extended at the same time. If only @extended needs set, then it is recommended to use the SetExtended() function instead.

Edited January 15, 2014 by jdelaney

[neuronyx]

Thanks and apologies for not seeing it blatantly in the help file. Thats good to know and I will be experimenting with that on my next script since it is no doubt useful.

I am nearing the end of this script however I have one last question. My script will check a file version to see if it exists, if its greater than a version it wont do anything but if less than and it will execute a setup file. The setup requires #RequireAdmin in the script to run properly but I only want to call this if setup needs to be run. Is this possible since it always seems to place this at the top of the script regardless of where I originally place it in the script?

EDIT: I decided to just call another compiled script which runs the setup file instead of trying to do everything with one file. Simple enough!

Edited January 15, 2014 by neuronyx

[l3ill]

Your error check is in the wrong place, it will never equal 1.

 

So I finally figured out what you guys were trying to tell me... so here it is for those of you that think like I do and didint understand the explanations of the learned

$ver = FileGetVersion("C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\something.dll")
; above FileGetVersion fed an intentionally incorrect argument to produce an error

ConsoleWrite("$ver =  " & $ver & @CRLF) ; this ConsolWrite is in the way of the error check below
;Thus the remark "Good luck getting ConsoleWrite to return an error :-)
;...which is BTW now funny that I get it

;Comment out Move or remove the Consolewrite above and it works...

If Not @error = 1 Then
    MsgBox(0, "", $ver)
Else
    MsgBox(0, "", "Say this.")
EndIf

Thanks again for your time and patience !