title: What image formats are supported by Gdk-Pixbuf (Gtk-Image?) by Default?
body: <p>I know that Gdk-Pixbuf supports png and jpg, but I cannot find an <em>exact list</em> of all the completely (or partially) supported image formats anywhere on the internet. It is necessary for my current project, since I need to check the extension of every file in a directory and determine whether it is supported or not by gdk-pixbuf. Any help?</p>