Take a snapshot of qgraphicsview

Question

I am using Qt 4.5 and qgraphicsscene / view to show the video to the user. I would like to provide a “take a snapshot” button, and I'm sure there is a pretty simple way, much simpler of everything I think about. How can I make it elegant?

By the way, the code is here: http://gitorious.org/handy

Answer 1

You can use the method QWidget::grab(). This method maps the given widget to pixmap and returns this pixmap. Then you can do whatever you like, for example, save to a file with QPixmap::save().

Answer 2

See QScreen::grabWindow()and QWidget::grab().

grabWindow , . :

http://doc.qt.io/qt-5/qtwidgets-desktop-screenshot-example.html