Change icon of a drag and drop event



  • Currently, the only drag and drop place where the icon of a drag action is configurable is when the drag event is "manually created":http://qt-project.org/doc/qt-5/qtwidgets-draganddrop-draggableicons-example.html:
    @
    QDrag *drag = new QDrag(this);
    drag->setMimeData(mimeData);
    drag->setPixmap(pixmap);
    drag->setHotSpot(event->pos() - child->pos());
    @

    Here:
    @
    drag->setPixmap(pixmap);
    @

    changes the icon of the drag action. But in the case of an externally provoked drag event:
    @
    QWidget::dragEnterEvent(QDragEnterEvent *event)
    @

    it is not possible to change the icon of the drag action.

    I want to drag a file to my application and as the mouse cursor enters the application window's area, I want to change the icon of the drag action. Then if the user doesn't drop the file onto the application window but moves it out of its area, I want to recover the original icon.


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