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 |
| Since: | Qt 5.12 |
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.