[Vala] Button not visible

[Sascha Manns <Sascha Manns mailbox org>]

Hello list,

i started to create a simple gui with help from the documentation. Also
i added two buttons:

int main (string[] args) {
    Gtk.init (ref args);

    var window = new Window ();
    window.title = "PublicanCreators";
    window.border_width = 10;
    window.window_position = WindowPosition.CENTER;
    window.set_default_size (500, 600);
    window.destroy.connect (Gtk.main_quit);

    /* You can add GTK+ widgets to your window here.
     * See https://developer.gnome.org/ for help.
     */

    var publication = new Button.with_label ("Create a new Publication");
    publication.clicked.connect (() => {
        /*button.label = "Thank you";*/
    });

    var revision = new Button.with_label ("Create a new Publication");
    revision.clicked.connect (() => {
        /*button.label = "Thank you";*/
    });

    window.add (publication);
    window.add (revision);
    window.show_all ();

    Gtk.main ();
    return 0;
}

But the second button isn't visible. Just the first one.
Maybe someone knows why?

Greetings
Sascha

-- 
Sascha Manns
Maifeldstraße 10
56727 Mayen

P: +49-2651-4014045
W: http://saigkill.tuxfamily.org

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