GNOME.org

Tutorials, code samples and platform demos in Vala

0 Beginner's Tutorials — A beginner's guide to GUI programming using GTK+, including code samples and practice exercises.
1 Image Viewer — A little bit more than a simple "Hello world" Gtk application.
2 Guitar Tuner — Use Gtk+ and GStreamer to build a simple guitar tuner application for GNOME. Shows off how to use the interface designer.
3 Audio Player — Coming soon...
4 Magic Mirror — Use your webcam as a mirror using the GStreamer framework and Gtk+