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 cast ApplicationWindow(QML) to QQuickWindow(C++). Then, It will be easy to take screenshot.

void ScreenShot(QQuickWindow *widget) {
    QPixmap pixmap = QPixmap::fromImage(widget->grabWindow());
    QFile f("your_name.png");
    f.open(QIODevice::WriteOnly);
    if(f.isOpen()) {
        pixmap.save(&f, "PNG");
    }