text: import zmq
  
  context = zmq.Context()
  
  #  Socket to talk to server
  socket = context.socket(zmq.PAIR)
  print("Connecting to server ...")
  socket.connect("tcp://10.0.1.12:5555")
  
  msg = b'{"strData":"","numData":0,"type":"MARKER","from":-1}'
  print("Sending marker.")
  socket.send(msg)
  socket.close()
  