Sign in to follow this  
Followers 0
Reizvoller

Subscript used on non-accessible variable

2 posts in this topic

Greetings, 

Func pixelHunter ()
   Local $PixelHunt[2]

   Do
    $PixelHunt = PixelSearch (1, 1, 1016, 874, "0xCCE4CC", 0, 1, $sWorkOrderWin)
 Until $PixelHunt[0] > 0


EndFunc

So when I call up this function in my app it fires back "Subscript used on non-accessible variable"

Now, if I am understanding this message properly it is trying to tell me that the variable can't be seen by the function asking for it.

I replaced "Do...Until" with simply a "ConsoleWrite" the $PixelHunt value and it doesn't throw that error.

Any advice would be appreciated!

-Reiz

Share this post


Link to post
Share on other sites



#2 ·  Posted (edited)

Pixelsearch returns an array.  $pixel hunt does not need to be declared as an array ahead of time remove the "[2]" from the declaration line.

 

Remove the do and until statement. 

It should look like this

 

$a=pixelsearch  (0,0,100,100, color)

If isarray  ($a)  then

;do whatever bc it was successful 

Else

;  do whatever not successful no color found

Endif

 

Your basically declaring an array 

$pixelhunt [0]

$pixelhunt [1]

$pixelhunt [2]

Then trying to assign a value to an unknown slot. 

If you went  $pixelhunt [0]=pixelsearch  (0,0,1,1,color) the return would  (should ,could?)

Be stored as $pixelhunt  [0][0]=x coord

$pixelhunt  [0][1]=y coord

I believe it would work this way.  It's been awhile.

Edited by markyrocks

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Similar Content

    • Dimmae
      By Dimmae
      Hello,
      at first: i'm new here, so please forgive me my mistakes, and show them to me, just that i can learn to do better in the future.
      Now to my Problem: i have an excel sheet, where i just need some columns for further actions, but i have no idea how to add single columns to a new array.
      I found the following code(the one i just added as a file) from 'water' in this forum, but i wont get how i could add multiple columns into a new array.
      The biggest problem in my situation is that i dont know the count of the rows i need for the array, i just got a fix number of rows, which is 4.
       
      Hope you can help me, and sry again for this 'unlucky illustration'.
       
      btw: how can i add code shown as code here, instead of posting it as a attached file?.
       
       
       
      autoit-select-column.au3
      defects.xlsx
    • Atoxis
      By Atoxis
      Howdy, this is my first post, massive fan of autoit. 
      I've searched and tried and I would just like people who are better at this than me to let me know if this is even a thing.

      I'd like to perform just a variable. For example, it would be. *see inserted code*
      So what i'm wanting is, create the constant $test, and that variable would be what is followed after the = . Then perform the _FileCreate. Then perform the variable.  Logically or in my head rather.. That variable is declared and is equal to what it is set to above, therefore just placing the variable plainly in the script, it should be equal to what it was declared as.  So what am I doing wrong, and or how can I have autoit just perform the variable.  

       
      #include <File.au3> Const $test = FileWriteLine(@DesktopDir & "\Log.txt", @CRLF ) _FileCreate(@DesktopDir & "\Log.txt") $test  
    • ur
      By ur
      I have a script , during compilation and test execution, it worked perfectly but sometimes I am getting error as "Variable used without being declared."
       
      I understood somewhere in the branching logic this is happening.
       
      But not able to find it exactly.
       
      As I am using multiple include statements.the line number is also not giving accurately.
       

       
      Can anyone suggest what is the approach to resolve this?
    • czardas
      By czardas
      Haven't had much time to code recently. However the following thread inspired me.
      The debate about linear, parallel and binary search methods was rather interesting and, in an attempt to be diplomatic, I decided to combine @jchd's suggestion with @LarsJ's binary search example. I decided that the binary search algorithm required modification to make it more linear. As usual, 'if you invent something, it probably already exists and if it already exists, it exists for a reason'. My first attempt was not all that good. The code worked but was really a mess. I blame peer pressure (to post an example of a parallel search method).  I will delete that old code in due course.
      With a little memory jogging and a glance at the help file, the solution turned out to be quite easy: I just needed a better understanding of Euler. Further modification will be needed to work with more complicated unicode strings. The output could be returned as an array or a delimitered string. I'm not so interested in those details. I'm just going to post the algorithm for now and anyone, who wants to, can modify it to suit their needs. Both arrays must contain at least 1 element.
      Local $aFoo = [0,1,2,3,4,5,6,7,9,10,11,12,13,14,15,16,19,20,23,24,26,30,35,39,40,41] Local $aBar = [0,1,5,6,7,8,9,10,11,12,13,14,17,18,19,21,24,25,26,27,34,35,38,40] ParallelExponetialSearch($aFoo, $aBar) ; Compares two lists - returning positive matches. Each input array must be unique (individually) and in alphabetical order. Func ParallelExponetialSearch($aFoo, $aBar) Local $sFind, _ $iMin_F = -1, $iMax_F = UBound($aFoo) -1, $Lo_F = $iMin_F, $Hi_F, _ $iMin_B = -1, $iMax_B = UBound($aBar) -1, $Lo_B = $iMin_B, $Hi_B While $iMin_F < $iMax_F And $iMin_B < $iMax_B ; Toggle Arrays - Which array has most untested elements? This is the one we want to search next, ; so we can bypass more comparisons because (in theory) mismatches have a greater chance of being skipped. If $iMax_F - $iMin_F >= $iMax_B - $iMin_B Then ; $aFoo has more (or an equal number of) untested elements $Hi_F = $iMax_F $iMin_B += 1 $sFind = $aBar[$iMin_B] While $Lo_F < $Hi_F ; search $aFoo For $i = 0 To Floor(Log($Hi_F - $Lo_F) / Log(2)) $Lo_F = $iMin_F + 2^$i If $aFoo[$Lo_F] = $sFind Then $iMin_F = $Lo_F ; each match should be added to the output [perhaps an array] ConsoleWrite($sFind & " found at $aFoo[" & $Lo_F & "] = $aBar[" & $iMin_B & "]" & @LF) ExitLoop 2 ElseIf $aFoo[$Lo_F] > $sFind Then $Hi_F = $Lo_F -1 $iMin_F += Floor(2^($i -1)) $Lo_F = $iMin_F ContinueLoop 2 EndIf Next $iMin_F = $Lo_F ; minimum increment is one WEnd Else ; $aBar has more untested elements $Hi_B = $iMax_B $iMin_F += 1 $sFind = $aFoo[$iMin_F] While $Lo_B < $Hi_B ; search $aBar For $i = 0 To Floor(Log($Hi_B - $Lo_B) / Log(2)) $Lo_B = $iMin_B + 2^$i If $aBar[$Lo_B] = $sFind Then $iMin_B = $Lo_B ; each match should be added to the output [perhaps an array] ConsoleWrite($sFind & " found at $aFoo[" & $iMin_F & "] = $aBar[" & $Lo_B & "]" & @LF) ExitLoop 2 ElseIf $aBar[$Lo_B] > $sFind Then $Hi_B = $Lo_B -1 $iMin_B += Floor(2^($i -1)) $Lo_B = $iMin_B ContinueLoop 2 EndIf Next $iMin_B = $Lo_B ; minimum increment is one WEnd EndIf WEnd EndFunc ;==> ParallelExponetialSearch I hope this will be useful to someone. I believe it deserved a thread of its own!
    • RC86
      By RC86
      Afternoon!
      I have a requirement to return both a string and an array from a function so as a result I put them both into an array and returned that.  I can access them in their entirety after returning them but then I can't seem to access the array elements after this.  Should I be able to or is there a prettier way?
      #include <Array.au3> ;Memory info returned as a string and an array $memoryInfo = _getMemoryInfo() msgbox(0,"Memory Info",$memoryInfo[0]) _ArrayDisplay($memoryInfo[1],"Memory as an Array") Local $newArray[7] $memoryInfo[1] = $newArray msgbox(0,"Test element",$newArray[0]) _ArrayDisplay($newArray) Func _getMemoryInfo() Local $newArray[7] Local $array = MemGetStats() $newArray[0] = $array[0] ;% of memory in use $newArray[1] = Round($array[1]/1024 * 0.001,2) ;Total physical RAM $newArray[2] = Round($array[2]/1024 * 0.001,2) ;Availaible physical RAM $newArray[3] = Round($array[3]/1024 * 0.001,2) ;Total pagefile $newArray[4] = Round($array[4]/1024 * 0.001,2) ;Available pagefile $newArray[5] = Round($array[5]/1024 * 0.001,2) ;Total virtual $newArray[6] = Round($array[6]/1024 * 0.001,2) ;Available virtual $memoryUsage = $newArray[1] - $newarray[2] $pagefileUsage = $newArray[3] - $newarray[4] ;Output/Return Local $returnArray[2] $returnArray[0] = "Memory: " & $memoryUsage & " GB/" & $newArray[1] & " GB " & @CRLF & "Pagefile: " & $pagefileUsage & " GB/" & $newArray[3] & " GB " $returnArray[1] = $newArray return $returnArray EndFunc A bit messy but hopefully it's understandable what I'm trying to achieve.
      Thanks!