QML signal slot, call C ++ functions

Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism

QML signal slot, call C ++ functions signal, if need be) Explicitly calling a Python slot from QML If the Python object is exposed to QML using setContextProperty , you can

Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism

nice 88 slot login This article is the most comprehensive description of signals and slots in QML compared to all previous articles on this site

The item in the QML file is accessed as QObject in C++ and it could be cast to QQuickItem For now, we only need to connect its signal, so QObject will do

qml signal slot When a connection is configured, it becomes visible in Qt Designer's signal and slot editor where it can be further edited You can also edit signalslot

As it's quite convenient to expose Qt slot to QML element Connecting Qt signal to QML is quite easy We can use Connections component to