Richard:
There really is no code in the quit button. I just do:
——Method 1 ------
on mouseUp
quit
end mouseUp
Or:
——Method 2 ------
on mouseUp
send “doTheQuit” to me in 0 seconds
end mouseUp
on doTheQuit
quit
end doTheQuit
I tried closing all substacks. Do I need to close the mainstack first too?
Bill
On Dec 9, 2014, at 6:59 AM, Richard Gaskin <ambassa...@fourthworld.com> wrote:
> William Prothero wrote:
>
> > On Dec 8, 2014, at 2:10 PM, Richard Gaskin wrote:
> >> Interesting. Any pending messages at the time quit is invoked?
> >
> > I tried doing “Lock messages” before the quit, and closing
> > unused stacks, but it didn’t seem to make any difference.
> > Apparently the toolbar menu quit command does some kind of
> > cleanup before it actually quits.
>
> When I wrote "pending messages" I should have written "pendingMessages", e.g.
> timers ("send <message> in <time>").
>
> For an app to successfully quit two conditions must be met:
> 1. All stacks are closed
> 2. All pending messages either complete or are cancelled
>
> It may be that a timer is causing an unexpected interaction with some other
> part of the closing routine.
>
> Of course normally that would only mean the app won't quit, and nothing
> should ever cause a crash in LiveCode - any crash is by definition a bug that
> should be reported so it can be prevented from happening in the future.
>
> The challenge here is to try to figure out the moment the crash occurs.
>
> One solution might be logging: you could log each routine during the quit
> process to a text file, and the last one written there will be the last
> successful action.
>
> If there are few handlers in play you could add logging to the handlers
> themselves, and if there are many it may be useful to turn on the
> messageMessages global property and have a frontScript trap the
> messageHandled message to do the logging, so you'll have one place to handle
> logging that can easily be disabled once this diagnostic stuff is behind you
> and we've found the root cause.
>
> --
> Richard Gaskin
> Fourth World Systems
> Software Design and Development for the Desktop, Mobile, and the Web
> ____________________________________________________________________
> ambassa...@fourthworld.com http://www.FourthWorld.com
>
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