In the same context that my previous message (on resize), i have another problem regarding widget destruction: Whenever i "delete" the GLWidget described in my last message i get an error inside sigc, which seems to come from the Gtk::GL::DrawingArea destructor (but i'm not sure).
To find a minimal case giving problems i've been reducing the code until this:
Gtk::GL::DrawingArea* temp = new Gtk::GL::DrawingArea();
delete temp;
which causes the following error message and crash:
glibmm-ERROR **: file objectbase.cc: line 77 (void Glib::ObjectBase::initialize(GObject*)): assertion failed: (gobject_ == castitem)
this message is different from the crash i get when deleting my widget (derived from Gtk::GL::DrawingArea), but maybe it is related.
Any help will be welcome
j.
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