Hi Jeroen
I wrote:
> Hi Jeroen
>
> While my windows show up just fine, I do get similar warnings to you:
>
> (process:12227): GLib-GObject-CRITICAL **: gtype.c:2240: initialization
> assertion failed, use IA__g_type_init() prior to this function
>
> (process:12227): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion
> `GDK_IS_DISPLAY (display)' failed
>
> (process:12227): GLib-GObject-CRITICAL **: gtype.c:2240: initialization
> assertion failed, use IA__g_type_init() prior to this function
>
> (process:12227): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion
> `GDK_IS_DISPLAY (display)' failed
>
> I think we to call g_type_init()
> (http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#g-type-init)
> somewhere in the wxHaskell code, to avoid these warnings and possibly your
> wxHaskell to work. I am looking into it.
I changed the start-function (in wx/src/Graphics/UI/WX.hs) from:
-- | 'start' runs the GUI.
start :: IO a -> IO ()
start io
= run (unitIO io)
to:
-- | 'start' runs the GUI.
start :: IO a -> IO ()
start io
= do hPutStrLn stderr "WX checkpoint alpha"
hFlush stderr
run (unitIO io)
And I now get the output:
(process:14665): GLib-GObject-CRITICAL **: gtype.c:2240: initialization
assertion failed, use IA__g_type_init() prior to this function
(process:14665): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion
`GDK_IS_DISPLAY (display)' failed
(process:14665): GLib-GObject-CRITICAL **: gtype.c:2240: initialization
assertion failed, use IA__g_type_init() prior to this function
(process:14665): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion
`GDK_IS_DISPLAY (display)' failed
WX checkpoint alpha
That is, the checkpoint comes _after_ the GLib error, and as the
start-function is the very first function to be called, it leads me to
conclude that the error is not with the Haskell code. So I assume it
must be some library initialization. Unfortunately, I have no knowledge
of whats gets called as part of library initialization and I do not know
where to look. If anyway, can help me with this I would be most happy.
Greetings
Mads Lindstrøm
>
> This bugs seems to be similar to what you (and I) are experiencing
> https://bugzilla.redhat.com/show_bug.cgi?id=442977 .
>
>
> Greetings,
>
> Mads Lindstrøm
>
> Jeroen Janssen wrote:
> > Follow-up:
> >
> > With latest darcs version, showing revision 0.11.1 this time, this error
> > does
> > not occur any longer. However, wxhaskell is still not working as now
> > programs fail with:
> >
> > (process:3353): GLib-GObject-CRITICAL
> > **: /build/buildd/glib2.0-2.16.6/gobject/gtype.c:2248: initialization
> > assertion failed, use IA__g_type_init() prior to this function
> >
> > (process:3353): GLib-CRITICAL **: g_once_init_leave: assertion
> > `initialization_value != 0' failed
> >
> > (process:3353): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion
> > `GDK_IS_DISPLAY (display)' failed
> >
> > This happens for the example I mentioned in my previous e-mail but also for
> > the examples included with wxhaskell (BoxedCombinator etc).
> >
> > Any help with this? The parameters stayed the same as in my previous
> > e-mail
> > (Ubuntu 8.04, wxwidgets/wxgtk 2.8.7 ubuntu version), I even tried updating
> > to
> > wxwidgets 2.8.9, but to no avail, same error.
> > I build wxhaskell with "cabal" install, followed by the cd wx en usual
> > build
> > process if that may be of any help.
> >
> > Kind regards,
> >
> >
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