Reizvoller

Subscript Used on Non-Accessible Variable WinGetPos error

10 posts in this topic

Func workSpaceSetup ()
   ConsoleWrite ("workSpaceSetup" &@CRLF)
   $workSpace = WinGetHandle ("some site - Google Chrome")
   ConsoleWrite ($workSpace&@CRLF)
   $pos1 = WinGetPos ($workSpace)
   WinMove ($workSpace , "", $pos1[0] , $pos1[1] , 1366, 768, 0)
EndFunc
Quote

(26) : ==> Subscript used on non-accessible variable.:
WinMove ($workSpace , "", $pos1[0] , $pos1[1] , 1366, 768, 0)
WinMove ($workSpace , "", $pos1^ ERROR
>Exit code: 1    Time: 0.1179

So the script is first, the error I get is second in the quote.

This is one function of many for an app I am building but it is the first one that runs so I know there aren't other things at play here.

The idea is to keep the window in the same space it is when the script runs but just resize it as this app is used across multiple computers with different screen resolutions.

Could someone please elaborate upon what "Subscript used on non-accessible variable" means? 

Oh and the variable is declared as "Global $pos1 = 0" at the top outside of any functions with the other global variables.

Any advice would be greatly appreciated!

-Reiz

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#2 ·  Posted (edited)

https://www.autoitscript.com/autoit3/docs/function_notes.htm

Quote

If a function can set the @error flag, you should always check it before using a return value - if @error indicates an error then the function return value is generally undefined...

@error is always set to 0 when entering in a function.

Example:

Func workSpaceSetup ()
   ConsoleWrite ("workSpaceSetup" &@CRLF)
   $workSpace = WinGetHandle ("some site - Google Chrome")
   If @error then Return SetError(1,0,0)
   
   ConsoleWrite ($workSpace&@CRLF)
   $pos1 = WinGetPos ($workSpace)
   If @error then Return SetError(2,0,0)
   
   WinMove ($workSpace , "", $pos1[0] , $pos1[1] , 1366, 768, 0)
EndFunc

 

EDIT: Your problem was that you not check if this window title exist, and in next step if WinGetPos returns array 

Edited by mLipok
1 person likes this

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"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
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Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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Hey,

Thank you for the fantastic information!

I am really grateful for the link and your explanation.

I am up and running happily! :)

-Reiz

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#4 ·  Posted (edited)

I also get this error regularly with the code (and I am checking for existence):

Func cancelGillickQuestionWindow()

;logMSG("cancelQuestionWindow")
    ; Close the do you want to switch to open (viewing documents) window
    $win1Title = "[TITLE:Question]"
    If  WinExists($win1Title) Then
        $winPos = WinGetPos($win1Title)
        If $winPos[0] = 106 And _
           $winPos[1] = 327 And _
           $winPos[2] = 737 And _
           $winPos[3] = 369 Then
            WinActivate($win1Title)
            Send ( "{ALTDOWN}d{ALTUP}")     ; Defer decision
        EndIf
    EndIf
EndFunc


 

Untitled.jpg.12ab2d1eb3e9913572acae30d03

Edited by dgm5555
deleted return (which wasn't in first code post)

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4 minutes ago, dgm5555 said:

and I am checking for existence

:blink: Where ?
 

btw:
Please read this:  How to post code on the forum *


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Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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code posting corrected

the "if winExists" line in the code is checking for existence of window:
 

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#7 ·  Posted (edited)

Try this:

cancelGillickQuestionWindow()
If @error Or @extended Then MsgBox($MB_ICONERROR, 'TEST', '@error = ' & @error & @CRLF & '@extended = ' & @extended)


Func cancelGillickQuestionWindow()
    Return
    ;logMSG("cancelQuestionWindow")
    ; Close the do you want to switch to open (viewing documents) window
    $win1Title = "[TITLE:Question]"
    If Not WinExists($win1Title) Then Return SetError(1, 0, 0)

    $winPos = WinGetPos($win1Title)
    If @error Then Return SetError(2, @error, 0)

    If _
            $winPos[0] = 106 And _
            $winPos[1] = 327 And _
            $winPos[2] = 737 And _
            $winPos[3] = 369 _
             Then
        WinActivate($win1Title)

        Send("{ALTDOWN}d{ALTUP}") ; Defer decision
        Return SetError(0, 1, 1)
    EndIf

    Return SetError(0, 2, 1)
EndFunc   ;==>cancelGillickQuestionWindow

 

Edited by mLipok

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My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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#9 ·  Posted (edited)

:oops:.... fixed. :D Thanks.

 

Edited by mLipok

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Spoiler

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

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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I do apologise after "fixing" the code posting as per mLipok I pasted my current func which included a return which bypassed it completely (I've now removed the immediate return call)

I've added the edits and integrated your suggestion into my logging system (which will save it to text file), but if I don't get the error in the next hour before I leave work (it's caused by a particular automatic popup window which I can't manually trigger), so I'll post the results here next week.

Thanks for the super-prompt suggestions.

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