Variable used without being declared problem.

[tommytx]

I am having a confusing not declared question that I cannot seem to find a solution for. When the script is run without the call mode... meaning remove the main program from the function, the button in the capture function works just fine.. but as soon as I enclose the main program so I can call it the entire program works fine with exception of the one $oButton inside the capture function... The other $oButton's work every time under both conditions.

Here is the code.. keep in mind this is a huge program and everything is perfect with exception of the button call in the capture function... i have only included a small portion of the actual script.

call("mywork")


Func mywork()
$oButton = _IETagNameGetCollection ($oIE, "button",1)
$oButton.click
Sleep(1000)

$oButton = _IETagNameGetCollection ($oIE, "button",0)
$oButton.click
Sleep(1000)

;****************
$ans = decapture()
; ***************

$oButton = _IETagNameGetCollection ($oIE, "button",1)
$oButton.click
Sleep(3000)

$oButton = _IETagNameGetCollection ($oIE, "button",0)
$oButton.click
Sleep(1000)

EndFunc


Func decapture()
$oButton = _IETagNameGetCollection ($oIE, "button",0)
$oButton.click
Sleep(9000)
EndFunc

The resulting error that was thrown.

C:\work\post.au3 (231) : ==> Variable used without being declared.:
$oButton = _IETagNameGetCollection ($oIE, "button",0)
$oButton = _IETagNameGetCollection (^ ERROR
>Exit code: 1    Time: 53.262

Here is what I have tried..

1. GLOBAL $oButton at beginning of main program.

2. Local $oButton just inside the first line of the decapture function

3. Dim $0Button just inside the first line of the decapture function.

4. Any ideas for me to try would be greatly appreciated.

Edited September 28, 2010 by tommytx

[tommytx]

OH... shoot I solved it myself... you guys are making me get better.... as I keep digging in the books..

I thought it was referring to the button when in fact it was referring to the browser...

So all I needed to do was add the following..

$ans = decatpure($oIE) in the main program then add same to the function..

Func decapture($oIE)

EndFunc

But thanks anyway... of course that variable was not being passed to the funtion, but still not sure why it is not necessary when the call is not used.. since the use of $oIE is still inside a function... but anyway it works now..

[Varian]

The error appears to happen at $oIE, not $oButton. Has $oIE been declared Globally?

EDIT..Sorry, too late!!

Edited September 28, 2010 by Varian

[bo8ster]

@tommyxt - so you don't run in to this issue again I recommend you use 'Opt("MustDeclareVars", 1)' at the top of your script.

You can use '#AutoIt3Wrapper_run_debug_mode=Y' to find out exactly where the program is falling over.

Lastly, if you are going to use the same var names (which I would avoid) then you must understand scope. The helpfile explains it well enough.