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copied!<p>You cannot use <code>QQuickView</code> with an <code>ApplicationWindow</code> class. Not only is your destructor not called, your constructor isn't <em>either</em>, because the loading doesn't ever succeed.</p> <p>The code below works fine under Qt 5.1.1. Tested on both OS X 10.8 and Windows 7.</p> <p><strong>main.qrc</strong></p> <pre><code><RCC> <qresource prefix="/"> <file>main.qml</file> </qresource> </RCC> </code></pre> <p><strong>main.pro</strong></p> <pre><code>QT += core gui qml quick TARGET = qml-appwin-end-18597527 TEMPLATE = app SOURCES += main.cpp OTHER_FILES += main.qml RESOURCES += main.qrc </code></pre> <p><strong>main.cpp</strong></p> <pre><code>#include <QGuiApplication> #include <QQmlApplicationEngine> #include <QSettings> #include <QQuickWindow> #include <QtQml> #include <QDebug> class Settings : public QSettings { Q_OBJECT public: Settings() : QSettings("Marcin Mielniczuk", "BigText") {} ~Settings() { qDebug() << "Dying"; } }; int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); QQmlApplicationEngine engine; qmlRegisterType<Settings>("BigText", 1, 0, "Settings"); engine.load(QUrl("qrc:/main.qml")); QObject *topLevel = engine.rootObjects().value(0); QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel); window->show(); return app.exec(); } #include "main.moc" </code></pre> <p><strong>main.qml</strong></p> <pre><code>import QtQuick 2.0 import QtQuick.Controls 1.0 import BigText 1.0 ApplicationWindow { width: 300; height: 300 Settings {id: settings} } </code></pre>

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