Description of how data types are exchanged between QML and C++| doc.qt.io
The QMetaProperty class provides meta-data about a property.| doc.qt.io
The QMetaMethod class provides meta-data about a member function.| doc.qt.io
The QSettings class provides persistent platform-independent application settings.| doc.qt.io
The QMetaObject class contains meta-information about Qt objects.| doc.qt.io
The QMetaType class manages named types in the meta-object system.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io
The QVariant class acts like a union for the most common Qt data types.| doc.qt.io