SIGNAL_FLAG_QUEUING_REQUIRED
SIGNAL_FLAG_SEND_TO_THREAD | SIGNAL_FLAG_QUEUING_REQUIRED);
(flags & SIGNAL_FLAG_QUEUING_REQUIRED) != 0, signalToQueue);
(flags & SIGNAL_FLAG_QUEUING_REQUIRED) != 0, signalToQueue);
(flags & SIGNAL_FLAG_QUEUING_REQUIRED) != 0 ? SI_QUEUE : SI_USER,
flags &= SIGNAL_FLAG_QUEUING_REQUIRED | SIGNAL_FLAG_SEND_TO_THREAD;
(flags & SIGNAL_FLAG_QUEUING_REQUIRED) != 0 ? SI_QUEUE : SI_USER,
SIGNAL_FLAG_QUEUING_REQUIRED);