.TH MQTTCLIENT_SUBSCRIBE 1 "31 December 2020 (v1.3.8)" http://eclipse.org/paho .SH NAME MQTTClient_subscribe \- subscribe to the topic MQTT Examples .SH SYNOPSIS .B MQTTClient_subscribe .SH DESCRIPTION .B MQTTClient_subscribe subscribes to topic the MQTT Examples to receive the message "Hello World!". .SH SEE ALSO .BR MQTTAsync_publish (1) .BR MQTTAsync_publish_time (1) .BR MQTTAsync_subscribe (1) .BR MQTTClient_publish_async (1) .BR MQTTClient_publish (1)