Hi
I am trying to find a way to capture and save to file the current
contents of a Gtk::GL::DrawingArea.
Googling for this i found a method by Samuel Pelaez:
(IQScene is a Gtk::GL::DrawingArea)
void IQScene::save_image() {
// First, get the Config
Glib::RefPtr< Gdk::GL::Config > glconfig;
glconfig = get_gl_config();
// Second, create a Gdk::Pixmap
Glib::RefPtr< Gdk::Pixmap > pixmap;
pixmap = Gdk::Pixmap::create(get_window(),
get_width(), get_height(),
glconfig->get_depth() );
// Create a Gdk::Drawable from pixmap
Glib::RefPtr< Gdk::Drawable > drawable( pixmap );
// Now create the Gdk::Pixbuf
Glib::RefPtr< Gdk::Pixbuf > pixbuf;
pixbuf = Gdk::Pixbuf::create( drawable,0,0,get_width(),get_height() );
// And finally save the image
pixbuf->save( "image.jpg", "jpeg" );
}
When i use this method, an image with the dimensions of my IQScene is created.
However the ontents of the image is different, everytime the method is called.
It usually consists of little fragments from menu bars, other widgets
of my application, or the terminal window.
Does anybody see where the problem could be?
Or is there maybe a possibility to draw OpenGL directly into a pixbuf?
Thank You
Jody
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