Hi, I am developing a GUI for data visualization using OpenGL. This is done through the gtkglextmm library, using the Gtk::GL::DrawingArea widget.
Now I want to add the "Save image" feature. As far as I understand, saving images in gtk is done through Gdk::Pixbuf objects, which can be instantiated from a Gdk::Drawable, but NOT from a Gdk::GL::Drawable. My problem is: How do I create an instance of Gdk::Pixbuf if all I have is a Gdk::GL::Drawable (or Gdk::GL::DrawingArea)?? Any suggestions will be highly appreciated. Best regards, Samuel.
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