Re: gtk_widget_set_state

[Clemens Kirchgatterer <clemens root at>]

On Thu, 26 Oct 2000, Jonathan Blandford wrote:
> George Strauss <george s3i com> writes:
>
> > Hi,
> > I am working on the gui  to a simulation model using gtk and C++ and  I
> > was hoping someone could enlighten me as to what the following error
> > message means.
> >
> > Gtk-CRITICAL **: file gtkwidget.c: line 3249 (gtk_widget_set_state):
> > assertion `widget != NULL' failed.
> > The code doesn't easily lend itself to posting in this type of forum.
> > In a nutshell this occurs after an item is added to a tree.  The tree is
> > created of off a config file which is updated after each insertion and
> > removal.  This error only occurs when a third (and subsequent) level is
> > added to or removed from the tree.  What is the gtk tree trying to do
> > other than the obvious?  The gui works fine with this error,  but I
> > would much rather find out what is going on and the gtk documentation is
> > rather thin. Any help would be appreciated.

i had much of this errors by wasting my time with the tree widget the last
days. the tree widget IS bugy and IMHO not usable. especially when it comes to
selections. i came up to rewrite my code to use the CTree. it seems to be hard
at the beginning, cause there is no tutorial, but it starts to become real fun.
;-) now my code is shorter and easier to read.

give it a try - its worth it!

warm regards ...
clemens