zmq_msg_set - set message property

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0MQ 4.3.5                                          03/31/2024                                     ZMQ_MSG_SET(3)

       The zmq_msg_set() function shall set the property specified by the property argument to the value of the
       value argument for the 0MQ message fragment pointed to by the message argument.

       Currently the zmq_msg_set() function does not support any property names.

EINVAL
           The requested property property is unknown.

       zmq_msg_set - set message property

       The zmq_msg_set() function shall return zero if successful. Otherwise it shall return -1 and set errno to
       one of the values defined below.

zmq_msg_get(3) zmq(7)

intzmq_msg_set(zmq_msg_t*message,intproperty,intvalue);