Bo Thorsen schreef op 21-2-2014 12:33: > Den 21-02-2014 09:01, Graham Labdon skrev: >> Hi >> I have been reading about Qt's property system, in particular the NOTIFY >> optional specifier. >> Can NOTIFY be used with non Qml/QtQuick applications? > You can, but it doesn't do anything unless you code this yourself. The > NOTIFY just tells the introspection what signal is used to notify > changes. Unless you use this information for something yourself, it is > useless. > > QML uses this to update the bindings. You can do something similar yourself. > > I always consider Qt properties as mostly a conceptual bundeling of a set of related methods. You conceptually bind together a number of methods that read, write, reset or notify on changes of a value. That bundling may be used to do tricks like QML bindings or implement things like property editors via introspection, but for me, in its core, it is mainly a tool that expresses such conceptual relations between methods in the syntax. Just seeing a Q_PROPERTY specified like that, will tell any user of your code (including you yourself in a year from now) about the relations the methods in it have and what they are for, thus making your code easier to understand.
André _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
