icalproperty *cat = icalcomponent_get_first_property(inst->comp, ICAL_CATEGORIES_PROPERTY);
icalproperty *perc = icalcomponent_get_first_property(inst->comp, ICAL_PERCENTCOMPLETE_PROPERTY);
icalproperty *cat = icalcomponent_get_first_property(inst->comp, ICAL_CATEGORIES_PROPERTY);
icalproperty *perc = icalcomponent_get_first_property(inst->comp, ICAL_PERCENTCOMPLETE_PROPERTY);