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List:       wine-devel
Subject:    Re: Re: Hanging Messagebox instead of debugger
From:       "eric pouech" <eric.pouech () lemel ! fr>
Date:       2000-03-29 13:28:28
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>At 01:30 PM 3/29/00 +0200, you wrote:
>>since some time, programs when crashing no more bring up the debugger
>>but try to display a messagebox in
>>win32/except.c:UnhandledExceptionFilter.
>>The contend of messagebox isn't displayed and wine hangs:
><snip>
>
>Yes I have seen it too. 
>BTW this *is* the 'correct' behaviour; when there is no just-in time 
debugger
>installed, Windows (TM) displays a message box on any unhandled 
exception.
>(the hanging is well, a wine add-on; although it's also common with 
win9x)
>Now, if this is really the reason, no comment :-(
yes and no. the previous behavior was to start the wine internal 
debugger when an exception occured
this has been removed in the process of modifying the debugger (moving 
its interface from the UNIX signal handlers to the Windows debugging 
API)
the fixes :
- not the best one, but start all your programs with -debug so that 
debugger is started
- wait a bit: I have a standalone version (separate executable) for the 
wine debugger in my tree that I shall be releasing soon, and which shall
 support this (among other things). But this will require that the 
following points are fixed first :
- DebugActiveProcess to return a correct context (not a dummy one). 
Unfortunately, Alexandre didn't fully accept my implementation of it :-(

- have the winedebugger be a separate process (almost done)
- start an external app when an unhandled exception occurs in a process

As a comparison, the Windows behavior (as explained by Ulrich a few 
months ago) is to start a specific app (like DrWatson) when an unhandled
 exception occurs in a program... this is not yet in place, only the 
message box is present. Wine should launch its own debugger (or just 
display the messagebox) in this situation

it is not also a correct point that the message box hangs (i've seen it 
before, but haven't investigated further)

A+
---------------     
Eric Pouech 
(http://perso.wanadoo.fr/eric.pouech/)
"The future will be better tomorrow", 
Vice President Dan Quayle

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