Not sure how to use "If @error then"

[Dgameman1]

I have a program, that when closed runs this script..

 _IEQuit($browser)

But sometimes, the $browser that was created with 

Local $browser = _IECreate("http://google.com/")

was closed by the user, which is fine. But then how can I prevent an error from occurring if the $browser is already closed?

[iamtheky]

When closed, check to see if it exists, if so then quit. Rather than quit, then see if quit did anything.

Edited April 19, 2015 by boththose

[Dgameman1]

When closed, check to see if it exists, if so then quit. Rather than quit, then see if quit did anything.

 

I know how to check if a process exists but I'm not sure how to check to see if $browser exists

[iamtheky]

Are there many internet explorer windows? maybe getting the handle directly after creation, then winexists before quitting? I was totally thinking that checking to see if the object still exists would work, but no.

[Dgameman1]

Are there many internet explorer windows? maybe getting the handle directly after creation, then winexists before quitting? I was totally thinking that checking to see if the object still exists would work, but no.

Ah, well I feel like there's no need to get too complicated because it doesn't really matter if there's an error or not. 

Like if the browser is already closed then great. Is there a way to just attempt it and if it doesn't work then it ignores the error and continues on with the code?

[Kinshima]

#include <ie.au3>

Local $browser = _IECreate("http://google.com/")
$handle = _IEPropertyGet($browser , "hwnd")

If WinExists($handle) Then
_IEQuit($browser)
EndIf

[Dgameman1]

#include <ie.au3>

Local $browser = _IECreate("http://google.com/")
$handle = _IEPropertyGet($browser , "hwnd")

If WinExists($handle) Then
_IEQuit($browser)
EndIf

 

I get an error with that. I think it's because the variable $handle is not found.

Here is part of my code

While 1
   $nMsg = GUIGetMsg()
   Switch $nMsg


 Case $GUI_EVENT_CLOSE
If WinExists($handle) Then
_IEQuit($browser)
EndIf
If GUICtrlRead($clearhistoryCheckBox) = $GUI_CHECKED Then
Run("RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess " & "255")
EndIf
Exit


 Case $Awkward


 Case $Button
Local $browser = _IECreate("google.com")
$handle = _IEPropertyGet($browser , "hwnd")


   EndSwitch
WEnd

Edited April 20, 2015 by Dgameman1

[JohnOne]

Use an error handler.

Also, give details of the error.

[SadBunny]

 

 

I get an error with that. I think it's because the variable $handle is not found.

 

No, it's probably that the dilithium crystals are misaligned in the warp core. Though an error message should provide insight.

 

Also:

 

 Case $pornviewerForm

 

[Dgameman1]

No, it's probably that the dilithium crystals are misaligned in the warp core. Though an error message should provide insight.

 

Also:

 

 

 

Lmao I don't want to talk about it.