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QMqttMessageStatusProperties Class

The QMqttMessageStatusProperties class represents additional information provided by the server during message delivery. More...

Header: #include <QMqttMessageStatusProperties>
CMake: find_package(Qt6 REQUIRED COMPONENTS Mqtt)
target_link_libraries(mytarget PRIVATE Qt6::Mqtt)
qmake: QT += mqtt

Public Functions

QString reason() const
QMqtt::ReasonCode reasonCode() const
QMqttUserProperties userProperties() const

Detailed Description

Depending on the QoS level of a message being sent by QMqttClient::publish(), a server reports the state of delivery. Additionally to the QMqtt::MessageStatus, complementary information might be included by the server. These are exposed to users via QMqttMessageStatusProperties.

Note: Message status properties are part of the MQTT 5.0 specification and cannot be used when connecting with a lower protocol level. See QMqttClient::ProtocolVersion for more information.

Member Function Documentation

QString QMqttMessageStatusProperties::reason() const

Returns the reason string of a failed message delivery.

QMqtt::ReasonCode QMqttMessageStatusProperties::reasonCode() const

Returns the reason code of a failed message delivery.

QMqttUserProperties QMqttMessageStatusProperties::userProperties() const

Returns properties specified in conjunction with a message.

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