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