How to take Screenshot of QML application without QQuickView

Question

I want to grab screen of my QML application. But my root QML object is ApplicationWindow, so I can\'t use QQuickView to show it. Instead I have to use

Answer 1

You can use rootObjects() and cast its result to QQuickWindow:

foreach(QObject* obj, engine.rootObjects()) {
  QQuickWindow* window = qobject_cast(obj);
  if (window) {
    QImage image = window->grabWindow();
    qDebug() << image;
  }
}