c++ signal to qml slot: QML Extension for Visual Studio Code: Develop Qt Quick with VS Code and QML Hot Reload. Exposing Attributes of C++ Types to QML | Qt Qml | Qt 6.9.1. Signals & Slots | Qt Core | Qt 6.9.1 - doc.qt.io.
Develop Qt Quick apps with Visual Studio Code. Use the Felgo extension to support QML and preview the app in real-time using QML Hot Reload.
Description of how to expose the attributes of a C++ type to QML
This is similar to C/C++ function pointers, but the signal/
slot system ensures the type-correctness of callback arguments.