if (active_jobs != _last_active_jobs) {
_last_active_jobs = active_jobs;
- ui_signaller->emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs));
+ if (ui_signaller) {
+ ui_signaller->emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs));
+ }
}
dvdomatic_sleep (1);