QT: using connect between QML and QQuickWidget

QT: using connect between QML and QQuickWidget qt connect signal to slot Signal to signal connect By connecting signals to other signals, the connect() method can form different signal chains Whenever the TapHandler's tapped qt signal slot Since Qt uses a mechanism called signals and slots, it makes the callback function weakly coupled to the event Also, we usually use the terms signal and slot

qt signal slot Explicitly calling a Python slot from QML · Returning a value from a slot · Connecting signals from QML to Python using a top-level QML signal

qt slot Qt uses the signalslot Compared with callback functions, this mechanism has the advantage that Qt automatically dis- mantles a connection if Learn how to call QML function from C++ using connect function