Dent

[SOLVED] Possibly used before declaration error in IE.au3

6 posts in this topic

#1 ·  Posted (edited)

Hi all,

So I have a script that interacts with IE but for some reason I can't identify I'm getting the 'possibly used before declaration' error even though I've declared and used those variables.

Local $oPlayer1FSPC = _IEGetObjByName($oIE, "fs")
$oPlayer1FSPC.Value = $sFirstServePc1
Local $oPlayer2FSPC = _IEGetObjByName($oIE, "ofs")
$oPlayer2FSPC.Value = $sFirstServePc2
Local $oPlayer1FSWPC = _IEGetObjByName($oIE, "fsw")
$oPlayer1FSWPC.Value = $sFirstServeWonPc1
Local $oPlayer2FSWPC = _IEGetObjByName($oIE, "ofsw")
$oPlayer2FSWPC.Value = $sFirstServeWonPc2
Local $oPlayer1SSWPC = _IEGetObjByName($oIE, "ssw")
$oPlayer1SSWPC.Value = $sSecondServeWonPc1
Local $oPlayer2SSWPC = _IEGetObjByName($oIE, "ossw")
$oPlayer2SSWPC.Value = $sSecondServeWonPc2
Local $oPlayer1BPS = _IEGetObjByName($oIE, "kps")
$oPlayer1BPS.Value = $sBPSavePc1
Local $oPlayer2BPS = _IEGetObjByName($oIE, "kpb")
$oPlayer2BPS.Value = $sBPSavePc2

The $s variables have had strings assigned earlier in the script and I've tested that with ConsoleWrite

Edited by Dent
Solved

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Post whole script

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Local $TIUsername = "AutoBert"
Local $TIPassword = "password"
Local $TOCUsername = "AutoBert"
Local $TOCPassword = "password"

Local $oIE = _IECreate("http://tennisinsight.com/wp-login.php")
If Not IsObj($oIE) Then Exit ConsoleWrite("Error creating instance of IE" & @CRLF)

Local $oIE = _IEAttach("Tennis Insight")

_IELoadWait($oIE)

Local $Page = _IEBodyReadHTML($oIE)

If StringInStr($Page, "Logout") Then
    _IELinkClickByText($oIE, "Logout")
Else
EndIf

Local $oLogin = _IEGetObjByName($oIE, "log")
_IEFormElementSetValue($oLogin, $TIUsername)
Local $oPassword = _IEGetObjByName($oIE, "pwd")
_IEFormElementSetValue($oPassword, $TIPassword)
Local $oButton = _IEGetObjByName($oIE, "wp-submit")
$oButton.Click()
_IELoadWait($oIE)
Local $sURL = InputBox("Match to scrape", "Please enter the full URL of the match including http://", "", "", 400)

If StringInStr($sURL, "http://") Then
    _IENavigate($oIE, $sURL)
Else
    MsgBox(0, "Error", "Invalid URL, exiting")
    _IEQuit($oIE)
    Exit
EndIf

_IELoadWait($oIE)
sleep(5000)
ReadStats()

Func ReadStats()
Local $Page = _IEBodyReadText($oIE)
Local $iFirstServePc1Start = StringInStr($Page, "1st")
If $iFirstServePc1Start = 0 Then
    Wait()
Else
EndIf
$iFirstServePc1Start = ($iFirstServePc1Start - 5)
Local $sFirstServePc1 = StringMid($Page, $iFirstServePc1Start, 4)

;ConsoleWrite($iFirstServePc1Start & @CRLF)
ConsoleWrite("Player 1 1st Serve % : " & $sFirstServePc1 & @CRLF)

Local $iFirstServePc2Start = StringInStr($Page, "Serve %")
$iFirstServePc2Start = ($iFirstServePc2Start + 7)
Local $sFirstServePc2 = StringMid($Page, $iFirstServePc2Start, 4)

;ConsoleWrite($iFirstServePc2Start & @CRLF)
ConsoleWrite("Player 2 1st Serve % : " & $sFirstServePc2 & @CRLF)

Local $iFirstServeWonPc1Start = StringInStr($Page, "1st Serve W")
$iFirstServeWonPc1Start = ($iFirstServeWonPc1Start - 5)
Local $sFirstServeWonPc1 = StringMid($Page, $iFirstServeWonPc1Start, 4)

;ConsoleWrite($iFirstServeWonPc1Start & @CRLF)
ConsoleWrite("Player 1 1st Serve Win % : " & $sFirstServeWonPc1 & @CRLF)

Local $iFirstServeWonPc2Start = StringInStr($Page, "1st Serve W%")
$iFirstServeWonPc2Start = ($iFirstServeWonPc2Start + 12)
Local $sFirstServeWonPc2 = StringMid($Page, $iFirstServeWonPc2Start, 4)

;ConsoleWrite($iFirstServeWonPc2Start & @CRLF)
ConsoleWrite("Player 2 1st Serve Win % : " & $sFirstServeWonPc2 & @CRLF)

Local $iSecondServeWonPc1Start = StringInStr($Page, "2nd Serve W")
$iSecondServeWonPc1Start = ($iSecondServeWonPc1Start - 5)
Local $sSecondServeWonPc1 = StringMid($Page, $iSecondServeWonPc1Start, 4)

;ConsoleWrite($iSecondServeWonPc1Start & @CRLF)
ConsoleWrite("Player 1 2nd Serve Win % : " & $sSecondServeWonPc1 & @CRLF)

Local $iSecondServeWonPc2Start = StringInStr($Page, "2nd Serve W%")
$iSecondServeWonPc2Start = ($iSecondServeWonPc2Start + 12)
Local $sSecondServeWonPc2 = StringMid($Page, $iSecondServeWonPc2Start, 4)

;ConsoleWrite($iSecondServeWonPc2Start & @CRLF)
ConsoleWrite("Player 2 2nd Serve Win % : " & $sSecondServeWonPc2 & @CRLF)

Local $iBPSavePc1Start = StringInStr($Page, "BP Save")
$iBPSavePc1Start = ($iBPSavePc1Start - 5)
Local $sBPSavePc1 = StringMid($Page, $iBPSavePc1Start, 4)

;ConsoleWrite($iBPSavePc1Start & @CRLF)
ConsoleWrite("Player 1 BP Save % : " & $sBPSavePc1 & @CRLF)

Local $iBPSavePc2Start = StringInStr($Page, "BP Save %")
$iBPSavePc2Start = ($iBPSavePc2Start + 9)
Local $sBPSavePc2 = StringMid($Page, $iBPSavePc2Start, 4)

;ConsoleWrite($iBPSavePc2Start & @CRLF)
ConsoleWrite("Player 2 BP Save % : " & $sBPSavePc2 & @CRLF)
EndFunc

Func Wait()
    Sleep(2000)
    ReadStats()
EndFunc

_IEQuit($oIE)

Local $oIE = _IECreate("http://www.tennisoddscalculator.com/")
If Not IsObj($oIE) Then Exit ConsoleWrite("Error creating instance of IE" & @CRLF)

Local $oIE = _IEAttach("TOC")

_IELoadWait($oIE)

_IENavigate($oIE, "http://www.tennisoddscalculator.com/account/calculator/")

_IELoadWait($oIE)

Local $Page = _IEBodyReadText($oIE)

If StringInStr($Page, "Username or Email") Then
    Local $oUsername = _IEGetObjByName($oIE, "username")
    _IEFormElementSetValue($oUsername, $TOCUsername)
    Local $oPassword = _IEGetObjByName($oIE, "password")
    _IEFormElementSetValue($oPassword, $TOCPassword)
    Local $oClassReturn = $oIE.document.getElementsByClassName("form-actions")
    If Not IsObj($oClassReturn) Then Exit ConsoleWrite("Error in $oClassReturn" & @CRLF)
    Local $oTagReturn = $oClassReturn.Item(0).getElementsByTagName("button")
    If Not IsObj($oTagReturn) Then Exit ConsoleWrite("Error in $oTagReturn" & @CRLF)
    $oTagReturn.Item(0).Click()
    _IELoadWait($oIE)
ElseIf StringInStr($Page, "Use the menu at the top") Then
    _IENavigate($oIE, "http://www.tennisoddscalculator.com/account/calculator/")
    _IELoadWait($oIE)
Else
    MsgBox(0, "Error", "Unknown error")
EndIf

Local $oPlayer1FSPC = _IEGetObjByName($oIE, "fs")
$oPlayer1FSPC.Value = $sFirstServePc1
Local $oPlayer2FSPC = _IEGetObjByName($oIE, "ofs")
$oPlayer2FSPC.Value = $sFirstServePc2
Local $oPlayer1FSWPC = _IEGetObjByName($oIE, "fsw")
$oPlayer1FSWPC.Value = $sFirstServeWonPc1
Local $oPlayer2FSWPC = _IEGetObjByName($oIE, "ofsw")
$oPlayer2FSWPC.Value = $sFirstServeWonPc2
Local $oPlayer1SSWPC = _IEGetObjByName($oIE, "ssw")
$oPlayer1SSWPC.Value = $sSecondServeWonPc1
Local $oPlayer2SSWPC = _IEGetObjByName($oIE, "ossw")
$oPlayer2SSWPC.Value = $sSecondServeWonPc2
Local $oPlayer1BPS = _IEGetObjByName($oIE, "kps")
$oPlayer1BPS.Value = $sBPSavePc1
Local $oPlayer2BPS = _IEGetObjByName($oIE, "kpb")
$oPlayer2BPS.Value = $sBPSavePc2

 

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Dent,

You declare those variables as Local within the ReadStats function - as such they do not exist in the main script. You need to declare them as Global at the top of your script. I suggest reading the Variables - using Global, Local, Static and ByRef tutorial in the Wiki to learn about variable scoping.

M23

 


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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very strict Au3check says:

>Running AU3Check (3.3.14.2)  params:-d -w 1 -w 2 -w 3 -w 4 -w 5 -w 6  from:C:\Program Files\AutoIt3  input:C:\Users\Bert\AutoIt3.My\Temp\test.au3
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(1,7) : warning: 'Local' specifier in global scope.
Local $TIUsername
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(2,7) : warning: 'Local' specifier in global scope.
Local $TIPassword
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(3,7) : warning: 'Local' specifier in global scope.
Local $TOCUsername
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(4,7) : warning: 'Local' specifier in global scope.
Local $TOCPassword
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(7,7) : warning: 'Local' specifier in global scope.
Local $oIE
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(10,7) : warning: 'Local' specifier in global scope.
Local $oIE
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(10,41) : warning: $oIE already declared/assigned
Local $oIE = _IEAttach("Tennis Insight")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(14,7) : warning: 'Local' specifier in global scope.
Local $Page
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(21,7) : warning: 'Local' specifier in global scope.
Local $oLogin
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(23,7) : warning: 'Local' specifier in global scope.
Local $oPassword
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(25,7) : warning: 'Local' specifier in global scope.
Local $oButton
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(28,7) : warning: 'Local' specifier in global scope.
Local $sURL
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(112,7) : warning: 'Local' specifier in global scope.
Local $oIE
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(112,63) : warning: $oIE already declared/assigned
Local $oIE = _IECreate("http://www.tennisoddscalculator.com/")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(115,7) : warning: 'Local' specifier in global scope.
Local $oIE
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(115,30) : warning: $oIE already declared/assigned
Local $oIE = _IEAttach("TOC")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(123,7) : warning: 'Local' specifier in global scope.
Local $Page
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(123,36) : warning: $Page already declared/assigned
Local $Page = _IEBodyReadText($oIE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(126,8) : warning: 'Local' specifier in global scope.
    Local $oUsername
    ~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(128,8) : warning: 'Local' specifier in global scope.
    Local $oPassword
    ~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(128,54) : warning: $oPassword already declared/assigned
    Local $oPassword = _IEGetObjByName($oIE, "password")
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(130,8) : warning: 'Local' specifier in global scope.
    Local $oClassReturn
    ~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(132,8) : warning: 'Local' specifier in global scope.
    Local $oTagReturn
    ~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(143,7) : warning: 'Local' specifier in global scope.
Local $oPlayer1FSPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(144,38) : warning: $sFirstServePc1: possibly used before declaration.
$oPlayer1FSPC.Value = $sFirstServePc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(145,7) : warning: 'Local' specifier in global scope.
Local $oPlayer2FSPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(146,38) : warning: $sFirstServePc2: possibly used before declaration.
$oPlayer2FSPC.Value = $sFirstServePc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(147,7) : warning: 'Local' specifier in global scope.
Local $oPlayer1FSWPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(148,42) : warning: $sFirstServeWonPc1: possibly used before declaration.
$oPlayer1FSWPC.Value = $sFirstServeWonPc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(149,7) : warning: 'Local' specifier in global scope.
Local $oPlayer2FSWPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(150,42) : warning: $sFirstServeWonPc2: possibly used before declaration.
$oPlayer2FSWPC.Value = $sFirstServeWonPc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(151,7) : warning: 'Local' specifier in global scope.
Local $oPlayer1SSWPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(152,43) : warning: $sSecondServeWonPc1: possibly used before declaration.
$oPlayer1SSWPC.Value = $sSecondServeWonPc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(153,7) : warning: 'Local' specifier in global scope.
Local $oPlayer2SSWPC
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(154,43) : warning: $sSecondServeWonPc2: possibly used before declaration.
$oPlayer2SSWPC.Value = $sSecondServeWonPc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(155,7) : warning: 'Local' specifier in global scope.
Local $oPlayer1BPS
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(156,33) : warning: $sBPSavePc1: possibly used before declaration.
$oPlayer1BPS.Value = $sBPSavePc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(157,7) : warning: 'Local' specifier in global scope.
Local $oPlayer2BPS
~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(158,22) : warning: $sBPSavePc2: possibly used before declaration.
$oPlayer2BPS.Value = $sBPSavePc2
~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(144,38) : error: $sFirstServePc1: undeclared global variable.
$oPlayer1FSPC.Value = $sFirstServePc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(146,38) : error: $sFirstServePc2: undeclared global variable.
$oPlayer2FSPC.Value = $sFirstServePc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(148,42) : error: $sFirstServeWonPc1: undeclared global variable.
$oPlayer1FSWPC.Value = $sFirstServeWonPc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(150,42) : error: $sFirstServeWonPc2: undeclared global variable.
$oPlayer2FSWPC.Value = $sFirstServeWonPc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(152,43) : error: $sSecondServeWonPc1: undeclared global variable.
$oPlayer1SSWPC.Value = $sSecondServeWonPc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(154,43) : error: $sSecondServeWonPc2: undeclared global variable.
$oPlayer2SSWPC.Value = $sSecondServeWonPc2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(156,33) : error: $sBPSavePc1: undeclared global variable.
$oPlayer1BPS.Value = $sBPSavePc1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(158,22) : error: $sBPSavePc2: undeclared global variable.
$oPlayer2BPS.Value = $sBPSavePc2
~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(7,63) : error: _IECreate(): undefined function.
Local $oIE = _IECreate("http://tennisinsight.com/wp-login.php")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(10,40) : error: _IEAttach(): undefined function.
Local $oIE = _IEAttach("Tennis Insight")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(12,17) : error: _IELoadWait(): undefined function.
_IELoadWait($oIE)
~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(14,35) : error: _IEBodyReadHTML(): undefined function.
Local $Page = _IEBodyReadHTML($oIE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(17,35) : error: _IELinkClickByText(): undefined function.
    _IELinkClickByText($oIE, "Logout")
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(21,44) : error: _IEGetObjByName(): undefined function.
Local $oLogin = _IEGetObjByName($oIE, "log")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(22,44) : error: _IEFormElementSetValue(): undefined function.
_IEFormElementSetValue($oLogin, $TIUsername)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(31,25) : error: _IENavigate(): undefined function.
    _IENavigate($oIE, $sURL)
    ~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(34,14) : error: _IEQuit(): undefined function.
    _IEQuit($oIE)
    ~~~~~~~~~~~~^
"C:\Users\Bert\AutoIt3.My\Temp\test.au3"(43,35) : error: _IEBodyReadText(): undefined function.
Local $Page = _IEBodyReadText($oIE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
C:\Users\Bert\AutoIt3.My\Temp\test.au3 - 18 error(s), 39 warning(s)
!>11:40:11 AU3Check ended. Press F4 to jump to next error.rc:2
+>11:40:11 AutoIt3Wrapper Finished.
>Exit code: 0    Time: 1.491

at least one include file is missin, so it's not whole script.

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1 hour ago, Melba23 said:

Dent,

You declare those variables as Local within the ReadStats function - as such they do not exist in the main script. You need to declare them as Global at the top of your script. I suggest reading the Variables - using Global, Local, Static and ByRef tutorial in the Wiki to learn about variable scoping.

M23

 

Thank-you very much. Sometimes I can't see the forest for the trees!

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