[indent=4]
 
/* Build with valac --pkg gtk+-2.0 --pkg cairo yourfile.gs */
 
uses
    Gtk
    Cairo
 
class TransparentWindow : Gtk.Window
 
    init
        this.type = Gtk.WindowType.TOPLEVEL
        /* Set the title is useless !

//======================================================================
//  pags.vala - Converting text to rendered image files of the text.
//              It may e.g.

using Gtk;
using Cairo;
 
namespace Egg {
 
    public class ClockFace : DrawingArea {
 
        private Time time;
        private int minute_offset;
        private bool dragging;
 
        public signal void time_changed (int hour, int minute);
 
        public ClockFace () {
            add_events (Gdk.EventMask.BUTTON_PRESS_MASK
                      | Gdk.EventMask.BUTTON_RELEASE_MASK
                      | Gdk.EventMask.POINTER_MOTION_MASK);
            update ();
 
            // update the clock once a second
            Timeout.add (1000, update);
        }
 

/* Cairo in Vala sample code */
 
using Gtk;
using Cairo;
 
public class CairoSample : Gtk.Window {
 
    private const int SIZE = 30;
 
    construct {
        this.title = "Cairo Vala Demo";
        this.destroy += Gtk.main_quit;
        this.set_default_size (450, 550);
 
        this.create_widgets ();
    }
 
    private void create_widgets () {
        var drawing_area = new DrawingArea ();
        drawing_area.expose_event += this.on_expose;
        this.add (drawing_area);
    }
 
    private bool on_expose (DrawingArea da, Gdk.EventExpose event) {
        var ctx = Gd