how can i take an image from a specific part of my mainwindow and save it?

[Alex22]

hi,
is it possible to take a picture from a certain place of the MainWindow and save it? like printscreen but only a piece and certain place of my window must be in the picture.

[d_stranz]

QWidget::render()

[Alex22]

Thanks d_stranz, I could save the entry of myMainWindow by under code:

MainWindow *w;
    w = new MainWindow;
    QPixmap pixmap(w->size());
    w->render(&pixmap);
    pixmap.save("h.bmp");
    w->show();

MainWindow *w;
    w = new MainWindow;
    QPixmap pixmap(w->size());
    w->render(&pixmap);
    pixmap.save("h.bmp");
    w->show();

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I need to take an image from into the red box that you can see in the uploaded image. That the positions are:
position 1: beginning of "GroupBox"
position 2: top right of "b1"
position 3: down left of "GroupBox"
position 4: x=down left of "GroupBox", y=top right of "b1"

thanks for any help about working with 4 above positions because the size of MainWindow can be changed by pulling the window.
Screen.jpg

[anda_skoa]

If you only want the groupbox then call its render() method.

If you need things across container widgets, render the widget that contains all and use QPixmap::copy() to extract the part you are interested in.

Cheers,
_

[Alex22]

If you only want the groupbox then call its render() method.

If you need things across container widgets, render the widget that contains all and use QPixmap::copy() to extract the part you are interested in.

Cheers,
_

thanks. no i need the red box screen-shot that i draw in uploaded image and contains the GroupBox and 4 PushButttons(not just GroupBox). I told which positions are needed. please help me to do by those positions (4 positions that i told in my before post above).

[anda_skoa]

You could put the buttons and the groupbox into a container widget and then render this widget.
Or you just calculate the coordinates manually and use the already mentioned copy method.

Cheers,
_

[Alex22]

You could put the buttons and the groupbox into a container widget and then render this widget.
Or you just calculate the coordinates manually and use the already mentioned copy method.

Cheers,
_

thanks anda, but sorry i am newbie in Qt. please give me an example