Thread: Signal parameter - needed?

How to Expose a Qt C++ Class with Signals and Slots to QML qt connect signal to slot with parameter Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time qt connect signal to slot In debug mode we also annotate the string with the file location for a warning message if the signal connection did not work This was added in

qt signal slot example Qt application, and a design pattern used by several modern applications signal to a script function This approach is useful if you have a QObject