Re: GTK_IS_WIDGET Errors

[David Swiston <skyrat_backup23 yahoo com>]

Ok, one more tidbit of info.  I installed GCC 3.2.2 on
another computer of mine running slackware 8.1 and the
exact same project runs just fine on that computer, no
Gtk-CRITICAL errors.  I then sent the project over to
a lab computer running linux and it also ran without
an error.  Why would I get Gtk-CRITICAL errors on only
one of my computers for entry boxes and on two others
the exact same file causes none.  It can't be anything
wrong with the code can it?   Google revealed that
other people had had problems like this but I could
never find info on how the problem was fixed.

--- David Swiston <skyrat_backup23 yahoo com> wrote:
> After some more toying around I found out that it
> only
> appears to be the gtk_entry_new() function call that
> causes problems.  The entry box in my main window is
> somehow a null widget and when I spawn a new window
> from double clicking on an item in the clist I get a
> seg fault.  I have found that the seg fault happens
> from the gtk_entry_new call.  The thing that really
> bugs me is that I had some old compiled versions of
> my
> program sitting around that I know for certain would
> work and when I tried to execute them the same error
> msgs came up as below.  Now mind you I did not
> compile
> these old versions once I updated GCC, they are
> exactly the same as they were when they were built,
> 2
> weeks old.  Now, if I copy these old binarys over to
> another linux computer I have running slackware 8.1
> and execute them they run perfectly without any
> problems.  They are exactly the same as the files on
> my main computer that will not run correctly. 
> Obviously something with gtk/libs/deps must be
> messed
> up but I cannot figure it out.  I installed the
> newest
> 1.2.10 Gtk and the glib 1.2.10.  I also stepped back
> a
> version in GCC to 3.2.1  but none of this helped.  I
> am currently running slackware 8.1 w/gtk1.2.10,
> glib1.2.10, and gcc 3.2.1.  If ANYONE has some
> suggestions please let me know.  If you need any
> more
> info about my system also ask.
> 
> Thanks guys!
> David Swiston
> 
> --- David Swiston <skyrat_backup23 yahoo com> wrote:
> > Hello all.  I recently got an itch to update GCC
> > from
> > 2.9.5 to 3.2.2.  In doing so I have ran across a
> few
> > problems.  After changing over from the deprecated
> > headers I got my program to compile fine, however
> > when
> > executing it an entry box causes these errors
> msgs:
> > 
> > Gtk-CRITICAL **: file gtkwidget.c: line 2728
> > (gtk_widget_event): assertion `GTK_IS_WIDGET
> > (widget)'
> > failed.
> > 
> > Gtk-CRITICAL **: file gtkwidget.c: line 2728
> > (gtk_widget_event): assertion `GTK_IS_WIDGET
> > (widget)'
> > failed.
> > 
> > Gtk-CRITICAL **: file gtkwidget.c: line 2386
> > (gtk_widget_size_request): assertion
> `GTK_IS_WIDGET
> > (widget)' failed.
> > 
> > and some more just like these.  These error msgs
> > appear right after the program is executed without
> > any
> > user interaction.  All that is done is the main is
> > executed and a window is drawn.  Non of the other
> > widgets in the window complain, I have some
> pixmaps,
> > a
> > scrolledwindow, a clist, two buttons, and some
> > boxes. 
> > I did not touch the functions that the creating of
> > the
> > window resides in.   In addition, I randomly get
> the
> > same errors when I open other windows from a
> double
> > click on the clist and or close them after they
> are
> > created.  Anyone have any ideas?  I thought it MAY
> > have been some linking/out-of-date deps/libs so I
> > downloaded newer versions of pango/atk/glib and
> > compiled them with the new GCC however that has
> not
> > helped.  If anyone has some ideas please share.
> > 
> > Here is a snippet of code where I create the entry
> > box
> > that gives me an error everytime:
> > 
> > entry1 = gtk_entry_new_with_max_length(15);
> > //This is a function that I made to check if the
> var
> > is in fact a widget
> > //It returns GTK_IS_WIDGET()
> > std::cout << isWidget(entry1);
> > gtk_widget_ref (entry1);
> > gtk_object_set_data_full (GTK_OBJECT (window1),
> > "entry1", entry1,  
> >                             (GtkDestroyNotify)
> > gtk_widget_unref);
> > gtk_widget_set_usize (entry1, 75, 0);
> > gtk_box_pack_start (GTK_BOX (hbox2), entry1, TRUE,
> > TRUE, 0);
> > gtk_entry_set_text (GTK_ENTRY (entry1), ("Enter
> > IP"));
> > gtk_widget_show (entry1);
> > 
> > 
> > Again, this code always gives the error, when its
> > commented out the error disappears and so does the
> > entry box! =)   Also I get spuratic similar errors
> > for
> > other windows once created through user
> interaction.
> > 
> > 
> > Thanks guys,
> > David Swiston
> > 
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> 
> 
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