QtObject QML Type | Qt QML 5.15.18 (original) (raw)

A basic QML type. More...

• List of all members, including inherited members

Properties

• ****objectName** : string

Detailed Description

The QtObject type 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 type to enclose a set of custom properties:

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

Property Documentation

This property holds the QObject::objectName for this specific object instance.

This allows a C++ application to locate an item within a QML component using the QObject::findChild() method. For example, the following C++ application locates the child Rectangle item and dynamically changes its color value:

// MyRect.qml

import QtQuick 2.0

Item { width: 200; height: 200

[Rectangle](qml-qtquick-rectangle.html) {
    anchors.fill: parent
    color: "red"
    objectName: "myRect"
}

}

// main.cpp

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

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

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