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Variables that are inside a Function

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I have a whole section of a script that I want to use as a function so I can recall it later is need be. When I want to read a variable that is created inside of the function how do I read it from outside. Here is an example;

Func 1()
$Var = "Path"
EndFunc
MsgBox (0,"",$Var)
Exit

That will not work, it reports an undeclared variable when it gets to the $var in the MsgBox. However if I don't use the function everything is fine, for example

$Var = "Path"

MsgBox (0,"",$Var)
Exit

There must be a trick to it. :-(


George

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#2 ·  Posted (edited)

You have to make the variable global in one of two ways. You can either declare it outside any function as follows:

$Var = 0

Or you can use the Global keyword to force it to global scope:

Func 1()
    GLOBAL $Var  ; When using GLOBAL $var = "Path" I got a subscript error
    $Var = "Path"
EndFunc
1()
MsgBox (0,"",$Var)
Exit

EDIT: One other thing I forgot to mention, you have to call the function before the variable will be initialized. I've fixed the code in the example to do this. (It's probably safter to just use $var = 0 outside any function for a global variable...)

Edited by Valik

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Thanks Valik. I managed to work it out from there. And path was not the actual value I was working with, I used it only for the example. The actual strings were registry calls at the beginning of the script and further down I had to go back and refresh the strings. That is when the GoSub\Return routine would have still come in handy.


George

Question about decompiling code? Read the decompiling FAQ and don't bother posting the question in the forums.

Be sure to read and follow the forum rules. -AKA the AutoIt Reading and Comprehension Skills test.***

The PCRE (Regular Expression) ToolKit for AutoIT - (Updated Oct 20, 2011 ver:3.0.1.13) - Please update your current version before filing any bug reports. The installer now includes both 32 and 64 bit versions. No change in version number.

Visit my Blog .. currently not active but it will soon be resplendent with news and views. Also please remove any links you may have to my website. it is soon to be closed and replaced with something else.

"Old age and treachery will always overcome youth and skill!"

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