Scope Concept Question

[dufran3]

I have a general concept questions. I am using a $count variable to $count my loops. I am searching in a certain location, and anything that contains a string, is added to an array, then $count is incremented for each result it finds...simple...yes I know. However, it is doing this all in the function. Inside the function I have $count as being Global. Here is the function that is incrementing $count

Func SearchReg($searchpath, $valuename)
    $count = 0
    For $i= 1 to 10000
        $currentkey = RegEnumKey($searchpath, $i)
        If @error <> 0 then ExitLoop

        $displayname = RegRead($searchpath & "\" & $currentkey, $valuename)
        
        If StringInStr($displayname,$szRegDisplayName) Then
                    $FileArray[$count]=$displayname
                    $count = $count + 1                 
        EndIf
    Next
    GLOBAL $count
EndFunc

On line 98 I am calling this function above, as you can see, further down, in a For loop, I am using $count, however it is giving me the message that $count hasn't been declared... I thought I understood scope...if you declare Global, you can use variable inside and outside of functions, local, inside or outside only, not both...am I wrong here?

_FileWriteLog($szLogPathFile, 'Searching registry for:' & ' ' & $szRegDisplayName & ' in: ' & $szRegUninstallLocation & $szRegUninstallValue)
SearchReg($szRegUninstallLocation,$szRegUninstallValue)

;----------------------------------;
; Write Array Elements to log File;
;----------------------------------;
    For $i = 0 to $count
        _FileWriteLog($szLogPathFile,'$FileArray[' & $i & '] = ' & $FileArray[$i])
        $i = $i + 1
    Next

Edited December 26, 2006 by dufran3

[DaleHohm]

Dim, Local and Global are used to declare scope at the time of variable creation. I do not believe you can use them to CHANGE scope of an existing variable.

Looking briefly at your code, I think what you really want to do if make the value of your $count variable a Return value from your function

Func SearchReg($searchpath, $valuename)
    Local $count = 0
    For $i= 1 to 10000
        $currentkey = RegEnumKey($searchpath, $i)
        If @error <> 0 then ExitLoop

        $displayname = RegRead($searchpath & "\" & $currentkey, $valuename)
        
        If StringInStr($displayname,$szRegDisplayName) Then
                    $FileArray[$count]=$displayname
                    $count = $count + 1                    
        EndIf
    Next
    Return $count
EndFuncoÝ÷ Ù.¶§q©eÊ«~éܶ*')¶¬jëh×6$count = SearchReg($szRegUninstallLocation,$szRegUninstallValue)oÝ÷ Ø­µêòzÙ쨺·îËb¢zÞ¶ê綮¶²¶­Ê­è§µêÞ²×v®¶­sdgVæ26V&6&Vrb33c·6V&6FÂb33c·fÇVVæÖR¢Æö6Âb33c¶6÷VçBÒÂb33c´fÆT'&¢f÷"b33c¶ÒFò¢b33c¶7W'&VçF¶WÒ&VtVçVÔ¶Wb33c·6V&6FÂb33c¶¢bW'&÷"fÇC²fwC²FVâWDÆö÷ ¢b33c¶F7ÆæÖRÒ&Vu&VBb33c·6V&6FfײgV÷C²b3#²gV÷C²fײb33c¶7W'&VçF¶WÂb33c·fÇVVæÖR¢¢b7G&ætå7G"b33c¶F7ÆæÖRÂb33c·7¥&VtF7ÆæÖRFVà¢b33c´fÆT'&²b33c¶6÷VçEÓÒb33c¶F7ÆæÖP¢b33c¶6÷VçBÒb33c¶6÷VçB²¢VæD`¢æW@¢&WGW&âb33c´fÆT'&¤VæDgVæ0oÝ÷ Ù.q©íéÜjv®¶­seôfÆUw&FTÆörb33c·7¤ÆöuFfÆRÂb33µ6V&6ær&Vv7G'f÷#¢b33²fײb33²b33²fײb33c·7¥&VtF7ÆæÖRfײb33²ã¢b33²fײb33c·7¥&VuVæç7FÆÄÆö6Föâfײb33c·7¥&VuVæç7FÆÅfÇVR¢b33c¶×'&Ò6V&6&Vrb33c·7¥&VuVæç7FÆÄÆö6FöâÂb33c·7¥&VuVæç7FÆÅfÇVR £²ÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÓ°£²w&FR'&VÆVÖVçG2FòÆörfÆS°£²ÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÒÓ°¢f÷"b33c¶ÒFòV&÷VæBb33c¶×'&ÂÒ¢ôfÆUw&FTÆörb33c·7¤ÆöuFfÆRÂb33²b33c¶×'&²b33²fײb33c¶fײb33µÒÒb33²fײb33c¶×'&²b33c¶Ò¢b33c¶Òb33c¶²¢æW

Dale

Edit: broken code tag

Edited December 26, 2006 by DaleHohm

[dufran3]

Thanks for the Help! I haven't tried returning anything from functions. It is a nifty little feature. Thanks for the enlightenment!