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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++ #include <QDragMoveEvent>
++ #include <QFrame>
++ #include <QMimeData>
++ #include <QWidget>
++
++ namespace droprectangle {
++
++ struct Window : public QWidget
++ {
++ void dragMoveEvent(QDragMoveEvent *event);
++
++ QFrame *dropFrame = nullptr;
++ };
++
++
++ //! [0]
++ void Window::dragMoveEvent(QDragMoveEvent *event)
++ {
++ if (event->mimeData()->hasFormat("text/plain")
++ && event->answerRect().intersects(dropFrame->geometry()))
++
++ event->acceptProposedAction();
++ }
++ //! [0]
++
++
++ } // droprectangle