[Qt-interest] Saving image rendered in openGL widget in different resolutions

[Fabio Dago]

You can use this:

QPixmap QGLWidget::renderPixmap <qglwidget.html#renderPixmap> ( int w = 
0, int h = 0, bool useContext = false )

Regards.

Fabio

anjani gupta ha scritto:
> Hi,
>  
> I want to save openGL image rendered on main window in different file 
> formats with different resolutions.
> To save image in different format, I am using the following code:
>  
> <code>
> QGLWidget* main_window;
> //Assign value to main_window
> ...
> main_window->raise();
> main_window->repaint();
> QPixmap image = QPixmap::grabWindow(main_window->winId());
> image.save("filename","TIF"));
> </code>
>  
> I want to save image in different resolutions.Is there some efficient 
> way to save image in different resolutions?
>  
> Thanks in advance!
>  
> Regards,
> Anjani
>
>
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