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

[anjani gupta]

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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