<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="task" id="dev-help-appmenu" xml:lang="ru">

  <info>

    <link type="seealso" xref="dev-help"/>

    <revision version="0.1" date="2013-06-19" status="review"/>

    <credit type="author copyright">

      <name>Radina Matic</name>

      <email its:translate="no">radina.matic@gmail.com</email>

      <years>2013</years>

    </credit>

    <credit type="editor">

      <name>Ekaterina Gerasimova</name>

      <email its:translate="no">kittykat3756@gmail.com</email>

      <years>2013</years>

    </credit>

    <include xmlns="http://www.w3.org/2001/XInclude" href="cc-by-sa-3-0.xml"/>

  </info>

  <title>Add <gui>Help</gui> to the application menu</title>

  <links type="series" style="floatend">

    <title>Set up help</title>

  </links>

  
Most GNOME applications should have an application menu. The

  <gui style="menuitem">Help</gui> menu item should go above the

  <gui style="menuitem">About</gui> menu item.

  <example>

  <note>

    
This example, based on

    <app href="https://git.gnome.org/browse/cheese/tree/src/cheese-main.vala">Cheese</app>,

    assumes that your application is written in Vala. It will be slightly

    different for other programming languages.

  </note>

  
Add the <gui style="menuitem">Help</gui> item to the list of actions:

   private const GLib.ActionEntry action_entries[] = {

        <input>{ "help", on_help },</input>

        { "about", on_about },

        { "quit", on_quit }

    };

   add_action_entries (action_entries, my_Gtk_Application);

  
Add the <gui style="menuitem">Help</gui> menu item to the application

  menu:

  var menu = new GLib.Menu ();

  var section = new GLib.Menu ();

  <input>var item = new GLib.MenuItem (_("_Help"), "app.help");

  item.set_attribute ("accel", "s", "F1");

  section.append_item (item);</input>

  
View the help with <app>Yelp</app> when the

  <gui style="menuitem">Help</gui> menu item is clicked:

  private void on_help ()

  {

    var screen = main_window.get_screen ();

    try

    {

      Gtk.show_uri (screen, <input>"help:cheese"</input>, Gtk.get_current_event_time ());

    }

    catch (Error err)

    {

      message ("Error opening help: %s", err.message);

    }

  }

  
To link to a section on the <file>index.page</file>, use

  "help:<input>applicationname</input>/index#<input>sectionid</input>".

  </example>

</page>