AFAIK Application.OnException does not fire when you kill a tardy app
via the NT Task Manager which is the sort of thing I do way too often.
I have nasty piece of code at the moment that does some bad recursion &
rewinding to do comms sequencing - if I get it wrong I often end up in
an infinite loop which means reset button for Win 98 or under NT I have
to prune the task.
I also have to admit to using 'Halt' in some code to get back to the IDE
fast when things go really wrong in code (normally removed before
release I might add <g>).
In the end I just don't trust things like on exception handling to work
100% under Win9x.
Grant Black
Software Developer
SmartMove (NZ) Ltd
Phone: +64 9 361-0219 extn 719
Fax : +64 9 361-0211
Email: [EMAIL PROTECTED]
> -----Original Message-----
> From: Aaron Scott-Boddendijk [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 12, 1999 11:07 AM
> To: Multiple recipients of list delphi
> Subject: Re: [DUG]: One Instance (Again)
>
>
> >One of the major problems that was probably overlooked by
> most solutions
> >(including the JustOne32 component), is what happens if your app
> >crashes.
> >
> >For instance if your method creates something such as the global atom
> >below (or memory mapped files etc), then removes it on the
> FormDestroy
> >method, then what happens if you application dies with out
> hitting the
> >form destroy?
> >I have had a couple of commerical applications crash and it
> is annoying
> >to have to reboot to restart the app. Of course we being
> such fantastic
> >programmers our apps never crash so it not such a problem...<g>
> >
> >Basically the best solution is search through the list of windows and
> >check if your window is still running. I should really wrap
> the code up
> >into a component & redistribute it someday but it is code
> developed in
> >work time...
>
>
> How about using TApplication.OnException to trap any
> unhandled exceptions
> and release the Atom. Rather than having the Atom Form
> dependant add your
> own exit procedure to trap application exit and if the atom
> exists remove it.
>
> So normal termination the exit procedure will release the
> Atom and abnormal
> temination the OnException trap will release the Atom.
>
> Comments
>
> --
> Aaron Scott-Boddendijk
> Jump Productions
> (07) 838-3371 Voice
> (07) 838-3372 Fax
>
>
> --------------------------------------------------------------
> -------------
> New Zealand Delphi Users group - Delphi List -
> [EMAIL PROTECTED]
> Website: http://www.delphi.org.nz
>
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