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One way to integrate your Qt-basedGUI and ROS is to use qt_ros package. Work on its tutorial to get an idea how it works. In a nutshell that pkg provides an interface component qnode where you can pass ROS values to Qt and vice versa.
One way to integrate your Qt-basedGUI -based GUI and ROS is to use qt_ros package. Work on its tutorial to get an idea how it works. In a nutshell nutshell, that pkg provides an interface component qnode where you can pass ROS values to Qt and vice versa.