QML QtObject Element

The QtObject element is the most basic element in QML. More...

QtObject instantiates the C++ class QObject

This element was introduced in Qt 4.7.

• List of all members, including inherited members

Properties

• objectName : string

Detailed Description

The QtObject element is a non-visual element which contains only the objectName property.

It can be useful to create a QtObject if you need an extremely lightweight element to enclose a set of custom properties:

 import QtQuick 1.0

 Item {
     QtObject {
         id: attributes
         property string name
         property int size
         property variant attributes
     }

     Text { text: attributes.name }
 }

It can also be useful for C++ integration, as it is just a plain QObject. See the QObject documentation for further details.

Property Documentation

 // MyRect.qml

 import QtQuick 1.0

 Item {
     width: 200; height: 200

     Rectangle {
         anchors.fill: parent
         color: "red"
         objectName: "myRect"
     }
 }

 // main.cpp

 QDeclarativeView view;
 view.setSource(QUrl::fromLocalFile("MyRect.qml"));
 view.show();

 QDeclarativeItem *item = view.rootObject()->findChild<QDeclarativeItem*>("myRect");
 if (item)
     item->setProperty("color", QColor(Qt::yellow));