QMqttSubscriptionProperties Class

The QMqttSubscriptionProperties class represents configuration options a QMqttClient can pass to the server when subscribing to a topic filter. 更多...

頭：	#include <QMqttSubscriptionProperties>
qmake:	QT += mqtt
Since:	Qt 5.12

該類在 Qt 5.12 引入。

所有成員列錶，包括繼承成員

公共函數

void	setSubscriptionIdentifier (quint32 id )
void	setUserProperties (const QMqttUserProperties & user )
quint32	subscriptionIdentifier () const
QMqttUserProperties	userProperties () const

詳細描述

注意： Subscription properties are part of the MQTT 5.0 specification and cannot be used when connecting with a lower protocol level. See QMqttClient::ProtocolVersion 瞭解更多信息。

成員函數文檔編製

void QMqttSubscriptionProperties:: setSubscriptionIdentifier ( quint32 id )

Sets the subscription identifier to id .

另請參閱 subscriptionIdentifier ().

void QMqttSubscriptionProperties:: setUserProperties (const QMqttUserProperties & user )

Sets the user properties to user .

另請參閱 userProperties ().

quint32 QMqttSubscriptionProperties:: subscriptionIdentifier () const

Returns the subscription identifier used to describe this subscription.

另請參閱 setSubscriptionIdentifier ().

QMqttUserProperties QMqttSubscriptionProperties:: userProperties () const

Returns the user specified properties.

另請參閱 setUserProperties ().