How to use declared variables with IF ...

[BOUNCER]

im tangled up with this declaring variable stuff...

i want to make a function that has all the variables declared...and im having a hard time with it

Func disconnectcheck()
If $disconnectcheck <> "" Then
GUICtrlDelete($Pic1)
$connect2onlinelogo = GUICtrlCreatePic("connect2online.gif", 24, 16, 243, 258)
GUICtrlSetFont(-1, 8, 800, 0, "MS Sans Serif")
GUICtrlSetColor(-1, 0xFFFF00)
GUICtrlSetBkColor(-1, 0xFF0000)
GUICtrlSetOnEvent(-1, "disconnectClick")
Else
$disconnectcheck = IniRead("config.ini", "blah", "blah2", "")
$Pic1 = GUICtrlCreatePic("connect2offline.gif", 24, 16, 243, 258)   
EndIf
EndFunc

simple if statements...except it has variables on both sides that cant see each other

On both sides of the IF and ELSE statements the variables are declared...i cant seem to organize it in a way so that the variables are declared on both sides...

my other problem is that

$Pic1 = GUICtrlCreatePic("connect2offline.gif", 24, 16, 243, 258)

for example actually CREATES the image, so what the hell? if i do

Global $Pic1 = GUICtrlCreatePic("connect2offline.gif", 24, 16, 243, 258)

or

Global $disconnectcheck = IniRead("config.ini", "blah", "blah2", "")

itll just EXECUTE those functions...

whats the point of declaring a variable like $pic1 if it actually creates the picture, how am i suppose to use it after its declared

[bo8ster]

Simply, don't declare variables with IF. Declare Global vars at the top of the script and local vars at the start of functions then use them. By doing that you won't have to worry about scope, its good practice.

Add Opt("MustDeclareVars", 1) to the very top of your script. If you have more issues post all your code.

[BOUNCER]

so if i do

Global $Pic1 = GUICtrlCreatePic("connect2offline.gif", 24, 16, 243, 258)

how would i use $Pic1 again...how do you use variables after their declared

Edited November 27, 2009 by BOUNCER

[JohnOne]

The way I understand it is, If you globally declare a variable, it is available throughout your entire script

Global $var = "blue"

Func myfunc()
   If $var <> "blue" Then
      do whatever
   Else
      do something different
   EndIf
EndFunc

However if you want to manipulate the global variable from within a function, start reading the help file, first stop "ByRef"

Edited November 27, 2009 by JohnOne

[bo8ster]

how would i use $Pic1 again...how do you use variables after their declared

Exactly how JohnOne demonstrates.

The way I understand it is, If you globally declare a variable, it is available throughout your entire script

Global $var = "blue"

Func myfunc()
   If $var <> "blue" Then
      do whatever
   Else
      do something different
   EndIf
EndFunc

However if you want to manipulate the global variable, start reading the help file, first stop "ByRef"

That is correct, not going to explain scope, the help file does it to some degree though - see Dim. Edited November 27, 2009 by bo8ster