QPropertyChangeHandler Class
The QPropertyChangeHandler class controls the lifecycle of change callback installed on a QProperty. More...
Header: | #include <QPropertyChangeHandler> |
Inherits: | QPropertyObserver |
Detailed Description
\inmodule
QtCore
\ingroup
tools
QPropertyChangeHandler<Functor> is created when registering a callback on a QProperty to listen to changes to the property's value, using QProperty::onValueChanged and QProperty::subscribe. As long as the change handler is alive, the callback remains installed.
A handler instance can be transferred between C++ scopes using move semantics.