Declaring Variables

[Hawkwing]

If I have a function that declares a variable, then starts another function that uses that variable, the second function doesn't work. It says that I have used a variable that wasn't declared.

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HotKeySet ("{end}", "myfunction")


Sleep (2000)


Func myfunction ()
    $myvariable = 5
    myfunction2 ()
EndFunc


Func myfunction2 ()
    ToolTip ($myvariable)
    Sleep (2000)
EndFuncoÝ÷ Ù8^¢yrÁ¬q©ßwZ®§vØb²+-¡Ú,¢g­)à)¶¬jëh×6HotKeySet ("{end}", "myfunction")

$myvariable2 = 0
$myvariable = 0

Sleep (2000)


If $myvariable2 = 1 Then
    ToolTip ($myvariable)
    sleep (2000)
EndIf


Func myfunction ()
    $myvariable = 5
    myfunction2 ()
EndFunc


Func myfunction2 ()
    $myvariable2 = 1
EndFunc

Does anyone know an easier way to do something like this?

[Marlo]

When you declare a variable inside a function AutoIt assumes that it is only a local scoped variable meaning that it will be disposed after the function has ran.

You already figured out how to solve this

[Hawkwing]

Oh, didn't know that. Now I might be able to fix a couple of my scripts. Thanks.

[herewasplato]

...

You already figured out how to solve this

I'm not sure that the OP has figured out how to solve this since the second code is so different from the first - but it does declare the variable(s) from the first script outside of the func code

HotKeySet("{end}", "myfunction")

Global $myvariable

Sleep(2000)


Func myfunction()
    $myvariable = 5
    myfunction2()
EndFunc   ;==>myfunction


Func myfunction2()
    ToolTip($myvariable)
    Sleep(2000)
EndFunc   ;==>myfunction2

[Hawkwing]

Ah, so I just have to declare the variable before the function.

[SmOke_N]

Ah, so I just have to declare the variable before the function.

http://en.wikipedia.org/wiki/Scope_(programming)

http://en.wikipedia.org/wiki/Variable#Scope_and_extent

http://en.wikipedia.org/wiki/Global_variable

http://en.wikipedia.org/wiki/Local_variable

[Hawkwing]

So declaring a variable using local lets you use it on that script, and using global lets you use it on other scripts as well, right?

So what do dim and const do?

[SmOke_N]

So declaring a variable using local lets you use it on that script, and using global lets you use it on other scripts as well, right?

So what do dim and const do?

http://www.autoitscript.com/autoit3/docs/i...g_variables.htm

You really should consult your help file.

[Hawkwing]

I did look at the help file, but I guess I failed to notice this part:

Dim = Local scope if the variable name doesn't already exist globally (in which case it reuses the global variable!)

Global = Forces creation of the variable in the Global scope

Local = Forces creation of the variable in the Local/Function scope