On this page

TypeDescriptionSubscriber QML Type

Subscribes to type_description_interfaces::msg::TypeDescription messages — Represents a complete type description, including the type itself as well as the types it references. More...

Import Statement: import QtRos2.TypeDescriptionInterfaces
Inherits:

SubscriberBase

Status: Experimental Extension

Properties

Signals

Detailed Description

TypeDescriptionSubscriber receives typeDescription values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.

See also TypeDescriptionPublisher and typeDescription.

Property Documentation

message : typeDescription

The last message received on topic. Updated whenever a new message arrives.

referencedTypeDescriptions : list<individualTypeDescription>

The referencedTypeDescriptions field of the last received message. Updated whenever a new message arrives. referencedTypeDescriptionsChanged is emitted on every update.

typeDescription : individualTypeDescription

The typeDescription field of the last received message. Updated whenever a new message arrives. typeDescriptionChanged is emitted on every update.

Signal Documentation

messageReceived(typeDescription msg)

Emitted when a new typeDescription arrives on topic. msg contains the received value.

Note: The corresponding handler is onMessageReceived.

© 2026 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.