- ptr->SelectChanged.connect (sigc::bind (SampleFormatSelectChanged.make_slot(), WeakSampleFormatPtr (ptr)));
- ptr->SelectChanged.connect (sigc::mem_fun (*this, &HasSampleFormat::update_sample_format_selection));
- ptr->CompatibleChanged.connect (sigc::bind (SampleFormatCompatibleChanged.make_slot(), WeakSampleFormatPtr (ptr)));
+ ptr->SelectChanged.connect_same_thread (*this, boost::bind (&HasSampleFormat::update_sample_format_selection, this, _1));
+ // BOOST SIGNALS how to connect one signal to another
+ // ptr->SelectChanged.connect_same_thread (*this, boost::bind (SampleFormatSelectChanged, _1, WeakSampleFormatPtr (ptr));
+ // ptr->CompatibleChanged.connect_same_thread (*this, boost::bind (SampleFormatCompatibleChanged, _1, WeakSampleFormatPtr (ptr));