How to confirm the connection to ROS works?

[zhangzhaoweii]

When I copy the code of C++ Topic Publish Example to BeginPlay() method,The project was successfully compiled in vs2019.But how can I know the connection to ROS works? Add any components of Actor in Editor or what? Thanks in advance！

[mjforan]

Use the ROS command line tools (rostopic sub) or RQT to subscribe to the topic you are trying to publish to. If the connection is successful you will see the message come through. In the terminal where you ran rosbridge you should also see messages about the client connecting.