Mono.Posix 1.0.5000.0 2.0.0.0 4.0.0.0 System.Enum System.Flags Wait options for the syscall method. Field 1.0.5000.0 2.0.0.0 4.0.0.0 Mono.Unix.Native.WaitOptions Return immediately if no child has exited. Field 1.0.5000.0 2.0.0.0 4.0.0.0 Mono.Unix.Native.WaitOptions Return for children which are stopped (but not traced), and whose status has not been reported. Status for traced children which are stopped is provided also without this option.