This is how you do it from Objective-C: // Call NSProcessInfo to disable AppNap et al. NSActivityOptions activityOptions = NSActivityIdleDisplaySleep

This is how you do it from Objective-C: // Call NSProcessInfo to disable AppNap et al. NSActivityOptions activityOptions = NSActivityIdleDisplaySleepDisabled | NSActivityIdleSystemSleepDisabled | NSActivityLatencyCritical; NSProcessInfo* procInfo = [NSProcessInfo processInfo]; m_NoSleepActivity = [procInfo beginActivityWithOptions:activityOptions reason:@"Running some stuff"];