diff options
Diffstat (limited to 'doc/src/declarative/extending.qdoc')
-rw-r--r-- | doc/src/declarative/extending.qdoc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/src/declarative/extending.qdoc b/doc/src/declarative/extending.qdoc index 5c4d5e7..0cc989d 100644 --- a/doc/src/declarative/extending.qdoc +++ b/doc/src/declarative/extending.qdoc @@ -674,6 +674,16 @@ declaring a new property, and the corresponding C++ type. \row \o variant \o QVariant \endtable +From QML you can also declare object and list properties using any element name +like this: + +\code + property QtObject objectProperty + property Item itemProperty + property MyCustomType customProperty + property list<Item> listOfItemsProperty +\endcode + QML supports two methods for adding a new property to a type: a new property definition, and a property alias. @@ -965,6 +975,20 @@ Item { } \endcode +This may be connected to via QObject::connect() or called directly from C++ using +QMetaObject::invokeMethod(): + +\code + QDeclarativeEngine engine; + QDeclarativeContext *context = new QDeclarativeContext(engine.rootContext()); + QDeclarativeComponent component(&engine, QUrl::fromLocalFile("main.qml")); + QObject *object = component.create(context); + QVariant str("Hello"); + QMetaObject::invokeMethod(object, "say", Q_ARG(QVariant, str)); +\endcode + +Return values of type QVariant are also supported via Q_RETURN_ARG. + \section1 Defining new Components \target components |