Re: [gtkmm] Deleting child widgets in a Gtk::Table

[Murray Cumming <murrayc murrayc com>]

On Wed, 2004-04-28 at 18:47, Roger Leigh wrote:
> (epicpos:10851): Gtk-CRITICAL **: file gtkcontainer.c: line 983
> (gtk_container_remove): assertion `GTK_IS_WIDGET (widget)' failed
> 2,3,0,1 = overlap
> Deleting widget at 2,0
>   
> (epicpos:10851): Gtk-CRITICAL **: file gtkcontainer.c: line 983
> (gtk_container_remove): assertion `GTK_IS_WIDGET (widget)' failed
> 
> The widget with top-left corner (2,1) was skipped.  Am I using the
> TableList::erase method incorrectly?  Are the iterators invalidated by
> an erase()?

With gtkmm 2.0/2.2, if the child widget is manage()ed, you'll need to do
a reference() on the child widget before calling remove(), to keep it
alive. Hopefully that's helpful. This is fixed in gtkmm 2.4.
 
-- 
Murray Cumming
www.murrayc.com
murrayc murrayc com