<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="window.vala" xml:lang="gl">

  <info>

  <title type="text">Window (Vala)</title>

    <link type="guide" xref="beginner.vala#windows"/>

    <revision version="0.1" date="2012-04-07" status="draft"/>

    <credit type="author copyright">

      <name>Tiffany Antopolski</name>

      <email its:translate="no">tiffany.antopolski@gmail.com</email>

      <years>2012</years>

    </credit>

    <desc>Un botón de primeiro nivel que pode conter a outros widgets</desc>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Fran Dieguez</mal:name>

      <mal:email>frandieguez@gnome.org</mal:email>

      <mal:years>2012-2013.</mal:years>

    </mal:credit>

  </info>

  <title>Xanela</title>

      <media type="image" mime="image/png" src="media/window.png"/>

      
O Gtk.Application máis simple

      
Use <link xref="GtkApplicationWindow.vala">Xanela de aplicativo</link> se quere compatibilidade con GMenu.

/* This is the application. */

public class Application : Gtk.Application {

	/* Constructor */

	public Application () {

		Object (application_id: "org.example.window");

	}

	/* Override the 'activate' signal of GLib.Application,

	 * which is inherited by Gtk.Application. */

	public override void activate () {

		var window = new Gtk.Window ();

		window.title = "Welcome to GNOME";

		/* The following 3 lines are included here to introduce

		 * you to ways you can adjust the toplevel window to suit

		 * your needs.  Uncomment them to see what they do.

		 */

		//window.border_width = 10;

		//window.set_default_size (350, 70);

		//window.window_position = Gtk.WindowPosition.CENTER;

		/* Add the window to this application. */

		this.add_window (window);

		/* Show the window. */

		window.show ();

	}

}

/* The main function creates the application and runs it.*/

int main (string[] args) {

	var app = new Application ();

	return app.run (args);

}

Neste exemplo empregaremos o seguinte:

<list>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.Application.html">Gtk.Application</link>
</item>

  <item>
O widget <link href="http://www.valadoc.org/gtk+-3.0/Gtk.Window.html">Gtk.Window</link>
</item>

  <item>
O enum <link href="http://www.valadoc.org/gtk+-3.0/Gtk.WindowPosition.html">Gtk.WindowPosition</link>
</item>

  <item>
O método <link href="http://www.valadoc.org/gtk+-3.0/Gtk.Window.set_default_size.html">set_default_size</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.Container.border_width.html">border_width</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.Window.window_position.html">window_position</link>
</item>

</list>

</page>