Re: [wxhaskell-users] process crashes on second 'start'

[Conal E. <co...@co...>]

I did get wxHaskell-0.10.1 and wxWidgets-2.4.2 working together.  Multiple
'start's (hence ghci-friendly), and no string truncation, so I'm content.
And I prefer the more vertically compact visual style of sliders in 2.4.2over
2.6.3.  I was fooled at first in recompiling wxWidgets with
--enable-unicode.  I had to completely empty out my "mybuild" directory, not
just "make clean" to fix string truncation (unicode glitch).   - Conal

On 12/8/06, Jeremy O'Donoghue <jer...@gm...> wrote:
>
> Hi Conal,
>
> On 07/12/06, Conal Elliott <co...@co...> wrote:
> > Hi Jeremy,
> >
> > Thanks for the detailed pointers about wxWidgets, GUIs, and
> multi-threading.
> >  My use is actually very simple.  The only reason I wanted multiple
> > (sequential, not concurrent) invocations of 'start' is for convenience
> of
> > use in ghci.
> >
> > I recently switched from wxWidgets 2.4.2 to 2.6.3, and I remember that
> this
> > problem was worked around in 2.4.2 for use with ghci.  Is there really
> no
> > way to fix the situation with 2.6.3?
>
> This is what Daan said (in passing, in the context of another message
> about the new wxHaskell maintenance team):
>
> "Finally, I am not convinced that we should always use the latest
> wxWidgets version: In particular, the 2.4.2 version is the only one
> that lets you start and restart wxhaskell apps under GHCI under
> window. The newer versions use static c++ classes and the destructors
> are not called once the dll is loaded under GHCI (fixing this requires
> fixing wxWidgets or letting GHCI reload DLL's too)."
>
> > Do wxWidgets-2.4.2, wxHaskell-0.10.1 and ghc-6.6 get along together,
> > including unicode issues?
>
> I believe so (translation: I managed to get it to work on my PC under
> WinXP). I understand that Unicode support in 2.4.2 is not so thorough
> as for 2.6.3, although my Unicode requirements are minimal, so I
> wouldn't expect to have seen any significant issues. Eric is working
> on ways to test Unicode support more thoroughly. He's already
> published one darcs patch.
>
> In a couple of days (i.e. when it works...) I will be recompiling my
> wx 2.4.2 based installation to test the new NMAKE makefile for wxc
> (intention is to avoid the messy editing of Visual Studio project
> files and create something easier to maintain). I'll let you know how
> that goes.
>
> > Does anyone use ghci with wxHaskell-0.10.1 and ghc-6.6?
>
> Yes, although it's not my primary platform by a long way.
>
> Jeremy
>
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