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#include <gtkmm.h>
GQuark quark_test = 0;
void initialize_quark()
{
if(!quark_test)
{
//g_warning("initializing quark.");
quark_test = g_quark_from_static_string("quarktestmurrayc");
}
}
void on_object_qdata_destroyed(gpointer data)
{
//This doesn't seem to be called:
g_warning("on_object_qdata_destroyed(): c instance=%p", (void*)data);
}
int main(int argc, char**argv)
{
Gtk::Main app(&argc, &argv);
Gtk::Dialog* pDialog = new Gtk::Dialog();
Gtk::VBox* pBox = pDialog->get_vbox();
//Set a quark and a callback:
initialize_quark();
int a = 0; // (This doesn't work unless we have a non-null value for the 3rd parameter.)
g_object_set_qdata_full((GObject*)pBox->gobj(), quark_test, &a, &on_object_qdata_destroyed);
g_warning("vbox refcount=%d", G_OBJECT(pBox->gobj())->ref_count);
delete pDialog;
g_warning("after delete");
}
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