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 <article id="index">

  <artheader> 
    <title>Gnome Control Center Manual</title>
    <copyright>
      <year>2000, 2001</year>
      <holder>Red Hat, Inc. and Alexander Kirillov</holder>
    </copyright>

    <legalnotice>
      <para>
        Permission is granted to copy, distribute and/or modify this
        document under the terms of the <ulink type="help"
        url="gnome-help:fdl"><citetitle>GNU Free Documentation
        License</citetitle></ulink>, Version 1.1 or any later version
        published by the Free Software Foundation with no Invariant
        Sections, no Front-Cover Texts, and no Back-Cover Texts. You
        may obtain a copy of the <citetitle>GNU Free Documentation
        License</citetitle> from the Free Software Foundation by
        visiting <ulink type="http" url="http://www.fsf.org">their Web
        site</ulink> or by writing to: Free Software Foundation, Inc.,
        59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
      </para>
      <para>
        Many of the names used by companies to distinguish their
        products and services are claimed as trademarks. Where those
        names appear in any Gnome documentation, and those trademarks
        are made aware to the members of the Gnome Documentation
        Project, the names have been printed in caps or initial caps.
      </para>
    </legalnotice>

  <releaseinfo>
       This manual describes version &version; of GNOME
       Control Center. It was
       last updated on May 16, 2001.
    </releaseinfo>


  </artheader>

    <sect1 id="gnomecc-intro">
      <title>The Gnome Control Center</title>
    <para>
	The <application>Gnome Control Center</application> allows you
	to configure various parts of your system using a collection
	of tools called <quote>capplets</quote>. These capplets may be
	associated with the core set of Gnome applications or other
	applications for which the developers have written capplets.
      </para>
      <para>
	Your <application>Control Center</application> may contain
	more capplets than are documented here depending on the
	applications installed on your system.
    </para>
    <para> <application>Control Center</application> is a part of
      Gnome desktop environment; it is included in
      <filename>control-center</filename> package.
    </para>

      <para>
	You may start the <application>Control Center</application>
	one of three ways. To launch the <application>Control
	Center</application> without any particular active capplet
	select the <guimenuitem>Control Center</guimenuitem> menu item
	from the <guisubmenu>Settings</guisubmenu> submenu in the
	<guimenu>Main Menu</guimenu> or type the
	command <command>gnomecc</command> at the command line
	prompt. 
      </para>
      <para>
	If you know which capplet you would like to edit you may start
	that capplet by selecting the correct menu item in the
	<guimenu>Settings</guimenu> menu.
      </para>
    </sect1>
 

  <!-- ############ Usage ################ -->
  <sect1 id="usage">
    <title>Using the Control Center</title>
      <para>
	The <application>Control Center</application> is divided into
	two main sections, the menu of configurable capplets on the
	left and the main work space on the right. The capplets in the
	menu are grouped in sections, such as
	<guilabel>Desktop</guilabel>, <guilabel>Multimedia</guilabel>,
	etc. Each of these sections is discussed in detail below. As
	with all menus of this type, you can <quote>collapse</quote> a
	whole section by clicking on the small downward triangle to
	the left of the section title. To expand a collapsed section,
	click on the triangle again.
      </para>
      <para>
	Working with the <application>Control Center</application>
	simply requires you to select a capplet from the menu on the
	left and click on it. Once this is done, the workspace will
	change, allowing you to configure the item.
      </para>
      <para>After you have made the configuration changes, you can
      press <guibutton>OK</guibutton> button to confirm the changes
      or <guibutton>Cancel</guibutton> to return to the old
      configuration. It you want to test the new settings before
      making your decision press <guibutton>Try</guibutton> button;
      this will apply the new cofiguration settings so that you can
      see what they would look like, but it also remembers the old
      ones. After you have tried the new settings, you can press
      <guibutton>OK</guibutton> button to make them permanent, or
      <guibutton>Revert</guibutton> to return to the old
      configuration. 
    </para>
  </sect1>

    <!-- #########  Desktop ############## -->
    <sect1 id="Desktop-intro">
      <title>Desktop</title> 
      <para> 
        The Desktop section controls the most visible global settings
        for your Gnome environment.
      </para>
      <sect2 id="gccback">
	<title>The Background Properties Capplet</title>
	<para>
	  <indexterm id="idx-a72">
	    <primary>Gnome Control Center</primary> 
	    <secondary>Desktop</secondary>
	  </indexterm>
	  The properties for your background image can be set here by
	  either selecting a color or an image. If you select a color
	  you have the option of having <guilabel>Solid</guilabel>,
	  <guilabel>Horizontal Gradient</guilabel> (the color smoothly
	  changes from left to right) and  <guilabel>Vertical
	  Gradient</guilabel> (the color changes from top to bottom).
	  For gradient backgrounds, you need to select two colors:
	  beginning (primary) and ending (secondary) one.
	</para>
        <para>
	If you decide to have an image as wallpaper you may browse for
	the image you wish to use.  Once you have found your image you
	need to decide whether you would like to have the image tiled
	across the screen, centered, scaled up while keeping the same
	aspect, or simply scaled up to fit the screen. Once you have
	changed your background properties you may press the
	<guibutton>Try</guibutton> button at the bottom of the
	<application>Control Center</application> to make the change.
      </para>
      <para>
	If you would like to set the background by any other means you
	 may disable this capplet by unselecting <guilabel>Use Gnome
	 to set background</guilabel> checkbox.
	<figure>
	  <title>The Background Properties Capplet</title>
	  <screenshot>
	    <screeninfo>The Background Properties Capplet</screeninfo>
	    <graphic format="png" fileref="figures/bg-capplet" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
      </para>
    </sect2>  
    
  <sect2 id="gccpanel">
      <title>Global Panel Preferences</title>
      <para>
	This capplet is provided by the Gnome Panel and is documented in the
	<ulink type="gnome-help"
	url="gnome-help:panel">Panel
	Manual</ulink>
      </para>
    </sect2>
    <sect2 id="gccscreen">
	<title>The Screensaver Capplet</title>
	<para>
	  <indexterm id="idx-a73">
	    <primary>Gnome Control Center</primary>
	    <secondary>Screensaver</secondary>
	  </indexterm>
	  In this capplet you can change your screensaver properties. This
	  capplet contains a list of available screen savers you may choose
	  and a demo screen. Below these two dialogs you will see a set of
	  tools that  allow you  to change the  settings for  the global
	  screen  saver properties.  If the  screen saver  you  choose has
	  particular  settings  you  can  change  those  by  pressing  the
	  <guibutton>Settings</guibutton>  button that  appears  below the
	  screen saver list.
	</para>
	<para>
	  <guilabel>Global Screen Saver settings</guilabel> &mdash; In this
	  section of the capplet you can change the time, password,
	  and power management properties. You can decide how long you
	  would like the screen saver to wait before starting by
	  typing the number of minutes in the <guilabel>Start
	  After</guilabel> text box. If you would like a password to
	  return to your desktop click the <guibutton>Require
	  Password</guibutton> button.  Your account login password is
	  the password set for the screen saver.
	</para>
	<para>
	  You are  also given the option  of using power  management &mdash; if
	  your monitor  is capable  of it.  You may set  the time  to wait
	  before  the  monitor is  shut  off by  typing  the  time in  the
	  <guilabel>Shutdown monitor</guilabel> text box.
	  <figure>
	    <title>The Screensaver Properties Capplet</title>
	    <screenshot>
	      <screeninfo>The Screensaver Properties Capplet</screeninfo>
	      <graphic format="png"
	         fileref="figures/screensave-capplet" srccredit="dcm"> 
	      </graphic>
	    </screenshot>
	  </figure>
      </para>
      <note>
	<title>NOTE FOR ADVANCED USERS</title>
	<para>
	  Gnome (or, rather, <application>xscreensaver</application>
	  program used by Gnome) overrides the power management (DPMS)
	  settings you may have set by other means (such as explicit
	  <command>xset</command> command). For example, if you have
	  unselected <guilabel>Use power management</guilabel> option,
	  then power management will be disabled, even if you had
	  previously issued the command <command>xset +dpms</command>.
	  </para>
      </note>

      </sect2>
      <sect2 id="gcctheme">
	<title>Theme Selector</title>
	<para>
	  <indexterm id="idx-a74">
	    <primary>Gnome Control Center</primary>
	    <secondary>Theme Selector</secondary>
	  </indexterm>
	  The Theme Selector capplet  allows
	  you to select which GTK theme you would like to run.
	</para>
	<para>
	  GTK themes are coordinated settings that define the look and
	  feel of such elements of graphical user interface as buttons,
	  menus, scrollbars etc. of all Gnome applications (more
	  generally, of all applications using the GIMP Toolkit (GTK),
	  hence the name). 
	</para>
	<para>
	  To change your GTK theme select a theme from the
	  <guilabel>Available Themes</guilabel> list on the left side
	  of the main workspace. If you have <guibutton>Auto
	  Preview</guibutton> selected you will be able to see what
	  the theme looks like in the preview window below. Note that
	  the preview window is <quote>live</quote>: you can click on
	  a button, enter text in sample text entry box, etc. If you
	  like the theme press the <guibutton>Try</guibutton> button
	  on the bottom of the <application>Gnome Control
	  Center</application> to install it.
	</para>
	<para>
	  There are a few GTK themes that come loaded with Gnome when
	  you install it.  If you would like more themes you can check
	  resources on the Internet such as the <ulink
	  url="http://gtk.themes.org" type="http">GTK Themes
	  site</ulink>.  Once you have found and downloaded a theme
	  you like, press the <guibutton>Install new theme</guibutton>
	  button. This will launch a file browser that allows you to
	  find the theme you have just downloaded. The theme files
	  should be in a <filename>tar.gz</filename> or
	  <filename>.tgz</filename> format (otherwise known as a
	  <quote>tarball</quote>).  Once you have found the file press
	  the <guibutton>OK</guibutton> and Gnome will install the
	  theme in the appropriate directory
	  (<filename>~/.themes</filename>) automatically. Now you can
	  look in the <guilabel>Available Themes</guilabel> list for
	  the theme you have installed.
	</para>
	<para>
	  <figure>
	    <title>The Theme Selector Capplet</title>
	    <screenshot>
	      <screeninfo>The Theme Selector Capplet</screeninfo>
	      <graphic format="png" fileref="figures/theme-select"
	        srccredit="dcm"> 
	      </graphic>
	    </screenshot>
	  </figure>
	</para>
	<para>
	  If you would like to change the font used in the current
	  theme, you may do so by selecting the <guilabel>Use custom
	  font</guilabel> checkbox and clicking on the 
	  font button below it. This will bring up a font selection
	  dialog that allows you to specify the font, its style, and
	  size.
	</para>
      </sect2>
      <sect2 id="gccwm">
	<title>Window Manager Capplet</title>
	<para>
	  <indexterm id="idx-a75">
	    <primary>Gnome Control Center</primary>
	    <secondary>Window Manager</secondary><seealso>"Window
	    Manager"</seealso> 
	  </indexterm> 
	  Because Gnome is not dependent on any one window manager this capplet
	  allows you to select which window manager you wish to use. The Window
	  Manager capplet only shows Gnome-compliant window managers; if you
	  want to use other window managers, you have to tell Window Manager
	  capplet about them.
	</para>
	<figure>
	  <title>Window Manager Capplet</title>
	  <screenshot>
	    <screeninfo>Window Manager Capplet</screeninfo>
	    <graphic format="png" fileref="figures/wm-main" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
	<para>
	  The Window Manager capplet has a main list of the window
	  managers that you can currently select from. Your current
	  window manager will be labeled <guilabel>Current</guilabel>.
     </para>
	<para>
	  If you wish to add a new window manager to the main list you may
	  press the <guibutton>Add</guibutton> button. This will launch
	  the <guilabel>Add New Window Manager</guilabel> dialog.
	</para>
	<figure>
	  <title>Add New Window Manager</title>
	  <screenshot>
	    <screeninfo>Add New Window Manager</screeninfo>
	    <graphic format="png" fileref="figures/wm-add" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
	<para>
	  In the <guilabel>Add New Window Manager</guilabel> dialog
	  you may specify the name you wish to give the window
	  manager, the command to launch that window manager, and the
	  command to launch any configuration tool that might be
	  available for that window manager.
	</para>
	<para>
	  If you know that the window manager is fully Gnome compliant and
	  can be session managed you may select the <guilabel>Window
	    manager is session managed</guilabel> button. If you are unsure
	  you should check the documentation of your window manager.
	</para>
	<para>
	  Press <guibutton>OK</guibutton> when you are done.
	</para>
	<para>
	  Once you have finished adding your new window manager you will
	  see it appear in the main list of window managers. If you need
	  to change any of the properties you set in the <guilabel>Add New
	    Window Manager</guilabel> dialog you may select the window
	  manager from the main list with your mouse and press the
	  <guibutton>Edit</guibutton> button. 
	</para>
	<para>
	  You may also delete any window manager in the main list by
	  selecting it with your mouse and pressing the
	  <guibutton>Delete</guibutton> button.
	</para>
	<para>
	  If you are ready to switch the current window manager you
	  may select the manager you wish to run from the main list
	  and press the <guibutton>Try</guibutton> button. If you
	  would like to run the configuration tool, make sure the
	  manager you want to configure is selected and press the
	  <guibutton>Run Configuration Tool for [window manager
	  name]</guibutton> button.
	</para>
      </sect2>
    </sect1>
  

<!-- #########  Document Handlers ############## -->
  <sect1 id="doc-handlers">
    <title>Document Handlers</title>
      <para>
	The Document Handlers section of the <application>Gnome
	Control Center</application> allows you to change the way
	certain file types and functions are viewed, edited or
	manipulated.
      </para>
      <sect2 id="gccedit">
	<title>Default Editor</title>
	<para>
	  <indexterm id="idx-a76">
	    <primary>Gnome Control Center</primary>
	    <secondary>Default Editor</secondary>
	  </indexterm>
	  The Default Editor Capplet allows you to select which editor
	  will be your default editor while using Gnome. This will
	  allow applications like the Gnome File Manager to launch the
	  correct editor when you try to open files associated with
	  editing. All popular editors available are included in the
	  selection list. 
	</para>
	<figure>
	  <title>The Default Editor Capplet</title>
	  <screenshot>
	    <screeninfo>The Gnome Edit Properties</screeninfo>
	    <graphic format="png" fileref="figures/gccedit" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
      </sect2>


   <!-- #########  File Types ############## -->
  <sect2 id="filetypes">
    <title>File types and programs</title>
    <para>
      This section  allows you to configure how files of various types
      should be handled. File type (formally called MIME type)
      describes what kind of data and in what format the file
      contains. For each of the file types, you can set the icon to be
      used by the File Manager, the default application to be used to
      open files of this type, etc. For example, file type
      <systemitem>image/jpeg</systemitem> is used for image files in
      <filename>JPEG</filename> format; by default, it is opened using
      File Manager's built-in graphics viewer. 
    </para>

    <sect3 id="filetypeviewing">
      <title>Viewing available file types</title>	
      <para>
	The File types capplet shows you all file types currently known
	to Gnome. For each file type, it shows a short description
	(e.g., <literal>PDF document</literal>), the file type name
	(e.g., <literal>application/pdf</literal>), etc. Clicking on a
	file type in the list shows you more information about this gile
	type, namely:
    </para>
      <itemizedlist>
	<listitem>
	  <para>Brief description (e.g., <guilabel>PDF document</guilabel>)
	  </para>
	</listitem>
	<listitem>
	  <para><quote>Official</quote> file type name, or the MIME
	  type (e.g., <systemitem>application/pdf</systemitem>). These
	  names should be of the form
	  <systemitem>type/subtype</systemitem>, where
	  <systemitem>type</systemitem> describes general type of data
	  (image, text, audio, video, or application) and
	  <systemitem>subtype</systemitem> gives complete
	  specification.
	  </para>
	</listitem>
	<listitem>
	  <para>Icon to be used for files of this type by File
	  Manager. 
	  </para>
	</listitem>
	<listitem>
	  <para>Default action to be performed when you click on the
	  file in the File Manager window. There are two possible
	  types of default actions: view the file using one of File
	  Manager built-in <quote>viewers</quote> or open the file
	  using an external application. In fact, you can have a whole
	  list of applications that can be used to open the file. One
	  of these applications is used by default when you click on
	  file; the other applications will be included in the pop-up
	  menu for files of this type (to get the pop-up menu, click
	  on the file with the right mouse button in the File Manager
	  window and select <guimenuitem>Open With</guimenuitem>).
	  </para>
	</listitem>
	<listitem>
	  <para>Extensions: these are used by File Manager and other
	  Gnome applications to determine file type of a given
	  file. The most common and simplest way of doing this is by
	  matching the filename extension: for example, extension
	  <filename>pdf</filename> is used for files of type
	  <systemitem>application/pdf</systemitem>. 
	  </para>
	</listitem>
      </itemizedlist>
      <note>
	<title>NOTE FOR ADVANCED USERS</title>
	<para>
	  In fact, Gnome File Manager first tries to determine file
	  type by looking at its content; only if it can't figure out
	  the file type from the content, it will use extension. Thus,
	  if you have a file which contains a JPEG image, Gnome File
	  Manager will correclty identify this file's type as
	  <systemitem>image/jpeg</systemitem>, even if the file name
	  has no extension at all or has extension
	  <filename>pdf</filename>. 
	</para>
      </note>
    </sect3>
    <sect3 id="filetypeedit">
      <title>Editing a file type</title>
      <para>
	By far the most common type of editing a file type is changing
       the default action associated with a given file type. To do so:
      </para>
      <orderedlist>
	<listitem><para>
	    Click on the file type in the list. 
	  </para>
	</listitem>
	<listitem><para> Select the type of default action
	    (<guilabel>Use Viewer</guilabel> or <guilabel>Open with
	    Application</guilabel>)
	  </para>
	</listitem>
	<listitem><para> Select the application/viewer you want to be
	    the default from the drop-down list. If you don't see an
	    application you want in this list, click on the
	    <guibutton>Edit List</guibutton> button. It will show you
	    the list of all application which are currently included
	    in the pop-up menu for this file type. Now click on
	    <guibutton>Add application</guibutton> button and enter
	    the application name (e.g., <application>Gnome PS
	    viewer</application>) and command used to launch this
	    application (e.g., <command>ggv</command>). </para>
	</listitem>
      </orderedlist>

      <para> You can also change other properties of a file type:
      </para>
      <itemizedlist>
	<listitem><para>
	    To change the icon used by a file type, click on the
      <guibutton>Change icon</guibutton> button.
	  </para>
	</listitem>
	<listitem><para> 
	    To change file type description, just click
	    inside the text field containing description and edit
	    it.
	  </para>
	</listitem>
	<listitem><para> To edit the list of extensions associated
	    with a file type, click on the <guibutton>Change file
	    extensions</guibutton> button. This will produce a window
	    showing the list of file extensions currently associated
	    with this file type. To remove an extension from the list,
	    select it with the mouse and then click
	    <guibutton>Remove</guibutton> button. To add a new
	    extension, click on <guibutton>Add</guibutton> button and
	    enter the new extension in the appearing dialog. Do not type
	    the leading dot: if you want to add extension
	    <filename>pdf</filename>, you should type in
	    <literal>pdf</literal>, not <literal>.pdf</literal>. 
	  </para>
	</listitem>
	<listitem>
	  <para>
	    To edit the list of applications associated with the file
	    type (these applications appear in the menu when you right-click
	    on the file of this type in the File Manager and select
	    <guimenuitem>Open with</guimenuitem>), click on the
	    <guibutton>Edit List</guibutton> button. This will show
	    the list of all applications associated with this file
	    type. You can remove any of the applications from the
	    list, edit an existing application (this allows you to
	    change the name under which this application appears in
	    the menu and the command used to launch this application),
	    or add a new application. Instead of removing of
	    application from the list, you can also temporarily
	    disable it by unchecking it in the list. Such a disabled
	    application will not be shown in the menu for the files of
	    this type. 
	  </para>
	</listitem>
      </itemizedlist>
    </sect3>
    <sect3 id="filetypeadd">
      <title>Adding and deleting file types</title>
      <para>
	To delete a file type, select it in the file type list and
	press <guibutton>Delete this Mime type</guibutton> button. To
	add a new file type, press <guibutton>Add new Mime
	type</guibutton> button. You will be prompted to enter the
	file type name and description. It is strongly advised that
	you follow the MIME standard: file type name should be of the
	form <systemitem>type/subtype</systemitem>, where
	<systemitem>type</systemitem> is one of the following five
	standard types: <systemitem>text</systemitem>,
	<systemitem>audio</systemitem>,<systemitem>image</systemitem>,
	<systemitem>video</systemitem>, or
	<systemitem>application</systemitem> (the last one should be
	used if none of the first four are suitable). </para>
      <para>
	After you have entered the file type name and description, the
	new file type is added to the list. Now you can select it in
	the list and choose an icon, file extensions and default
	action for this file type as described in <xref
	linkend="filetypeedit">. 
      </para>
    </sect3>

    <sect3 id="filetyperestore">
      <title>
	Restoring system defaults</title>
      <para>
	If you (or someone else) did something wrong in this capplet,
	you can  discard all your changes and
	restore the  system default values for all the settings
	controlled by this capplet (i.e., file types, default actions,
	icons, etc). To do so, click on <guibutton>Revert to system
	defaults</guibutton> button. Note that this will erase all
	your changes; you can not "undo" this action. 
      </para>
    </sect3>
  </sect2>




<!-- This section is obsolete!
      <sect2 id="gccmime">
	<title>Gnome Mime Types</title>
	<para>
	  <indexterm id="idx-a77">
	    <primary>Gnome Control Center</primary>
	    <secondary>Gnome Mime Types</secondary>
	  </indexterm>
	  The Gnome Mime Types Capplet allows you to determine how you wish
	  to handle certain file types, or Mime types. Mime stands for
	  Multipurpose Internet Mail Extensions and was originally
	  developed to allow email to carry various forms of data. In Gnome
	  you can define certain Mime types to be handled in any manner you
	  wish. For example, if you use .sgml files frequently and you wish
	  to always use Emacs to edit them you can configure the .sgml Mime
	  type to always be handled by Emacs. This means that any program
	  that wishes to launch the mime type for you will bring up
	  Emacs. This includes double clicking on the file icon in the
	  Gnome File Manager.
	</para>
	<figure>
	  <title>The Gnome Mime Types</title>
	  <screenshot>
	    <screeninfo>The Gnome Mime Types</screeninfo>
	    <graphic format="png" fileref="figures/gccmime" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
	<para>
	  To add a new mime type press the <guibutton>Add</guibutton>
	  button. This will display the <guilabel>Add New Mime
	    Type</guilabel> dialog in which you may define the new Mime type.
	</para>
	<para> 
	  To edit an existing Mime type you may select the Mime type with
	  your mouse cursor and press the Edit button. This will bring up
	  the <guilabel>Set Actions for...</guilabel> dialog. You may
	  define the icon used for the Mime type, the
	  <guilabel>Open</guilabel> action, the <guilabel>View</guilabel>
	  action and the <guilabel>Edit</guilabel> action.
	</para> 
      </sect2>
-->


    <sect2 id="gccURL">
      <title>URL Handlers</title>
      <para>
	The URL Handlers Capplet allows you to determine which browser
	is responsible for various types of URLs. URLs or  Uniform
	Resource Locators are <quote>addresses</quote>
	used to find certain documents or files. When you type in a
	web address in a browser you are using a URL. The default
	types of URLs are:
      </para>
      <variablelist id="url-types">
	<varlistentry>
	  <term><guilabel>Default</guilabel> </term>

	<listitem>
	  <para>
	    <guilabel>Default</guilabel> &mdash; this is any URL that is not
	    otherwise specified. For example, a web page.
	  </para>
	</listitem>
	</varlistentry>

	<varlistentry>
	  <term><guilabel>ghelp</guilabel> </term>
	<listitem>
	  <para>
	    This type of URLs is used for all Gnome documentation. By
	    default this is handled by Nautilus (Gnome file manager
	    and help browser) but you
	    may wish to view the files in another browser.
	  </para>
	</listitem>
	</varlistentry>

	<varlistentry>
	  <term><guilabel>info</guilabel> </term>
	<listitem>
	  <para>
	     This type of URLs is used for documentation in
	    <quote>info</quote> format file documentation
	    system. Nautilus can show these documents but you may wish
	    to handle them with another application.
	    </para>
	</listitem>
	</varlistentry>

	<varlistentry>
	  <term><guilabel>man</guilabel> </term>
	<listitem>
	  <para>
	    This type of URLs is used for so-called <quote>man
	    pages</quote>, a standard documentation format for command
	    line tools. Nautilus can view these documents but you may
	    wish to handle them with another application.
	  </para>
	</listitem>
	</varlistentry>
      </variablelist>
      <para>
	To change the default browser for any of these URL types
	simply change the browser in the <guilabel>handler</guilabel>
	text box at the top of the Capplet and press the
	<guibutton>Set</guibutton> button. If you wish to remove the
	URL handler press the <guibutton>Remove</guibutton> button.
      </para>
      <figure>
	<title>The URL Handlers Capplet</title>
	<screenshot>
	    <screeninfo>The URL Handler</screeninfo>
	  <graphic format="png" fileref="figures/gccurl" srccredit="dcm">
	  </graphic>
	</screenshot>
      </figure>
    </sect2>
  </sect1>
  



     <!-- #########  Application Launch Feedback ############## -->
    <sect1 id="alf">
      <title>Launch feedback</title>
    <para>
      This capplet allows you configure application launch feedback,
      i.e. indicators which tell you that a program is being
      loaded. Such indicators, which can take a number of forms (i.e.,
      an hourglass icon next to mouse cursor or a blinking star) come
      to life the moment you click on the application launch button or 
      select it in the menu and stay on until the application actually
      starts or until specified time has passed. These indicators can
      be very useful in cases when an application takes a long time to
      start: without them, you would never know whether the
      application is just taking a long time to start, or something
      went wrong (e.g., it has crashed at startup, or you maybe you
      didn't click on that button at all). 
    </para>
      <figure>
	<title>The Launch Feedback capplet</title>
	<screenshot>
	    <screeninfo>The Launch Feedback capplet</screeninfo>
	  <graphic format="png" fileref="figures/gccalf" srccredit="sasha">
	  </graphic>
	</screenshot>
      </figure>

<sect2 id="alf-ind">
      <title>Enabled indicators</title>
      
    <para>
      In this section, you can select what launch indicators should be
      enabled. You can select more than one; you can also disable all
      of them if you want to.
    </para>
    <variablelist>
      <varlistentry>
	<term><guilabel>Tasklist (invisible window)</guilabel>
	  </term>
	<listitem><para>
	    This is the default selection. This option adds to the
	    list of windows in your taskbar the window with the name
	    of the application being started and with hourglass icon
	    next to it. (This will only work if your taskbar is
	    configured to show normal. i.e. non-iconified
	    applications.)
	    </para>
	</listitem>
      </varlistentry>
      <varlistentry>
	<term><guilabel>Hourglass mouse cursor</guilabel>
	  </term>
	<listitem><para>
	    This option will put an hourglass icon next to the mouse
	    cursor. It doesn't affect mouse opertaions: you can still
	    use the mouse for clicking and dragging.  
	    </para>
	</listitem>
      </varlistentry>
      <varlistentry>
	<term><guilabel>Splashscreen</guilabel>
	  </term>
	<listitem><para>
	    This option puts a small window saying <guilabel>Starting
	    (Application Name)</guilabel> in the middle of your screen
	    </para>
	</listitem>
      </varlistentry>
      <varlistentry>
	<term><guilabel>Animated star</guilabel>
	  </term>
	<listitem><para>
	    This option put a small yellow blinking star in the upper
	    left corner of your screen. 
	    </para>
	</listitem>
      </varlistentry>
    </variablelist>
    </sect2>

    <sect2 id="alf-misc">
      <title>Miscellaneous</title>
   <variablelist>
      <varlistentry>
	<term><guilabel>Timeout</guilabel>
	  </term>
	<listitem><para>This parameter specifies maximal time the
	indicators can be on; after this, the indicators will
	disappear even if the application has not yet started.
	    </para>
	</listitem>
      </varlistentry>
      <varlistentry>
	<term><guilabel>Do not distinguish between windows
	(compatibility mode)</guilabel>
	  </term>
	<listitem><para>
	      This option controls the behavior of the indicators when
	      you are launching several applications simultaneosly (or
	      in quick succession). Since this is not a very common
	      situation, new users may skip this section.   
	    </para>
	    <para>
	      If this section is disabled (which is the default), the
	      indicators will track each of the applications you are
	      launching separately, and the indicators will stay on
	      until all the applications have started. This is
	      <quote>the right thing to do</quote>. Unfortunately, in
	      some (rare) cases it can also cause problems, sometimes
	      even leading to system crash. In such situations, you
	      should enable this option.
	    </para>
	    <para>
	      If this option is enabled,  the indicators will work
	      in a more primitive (but safer) way. Namely, they will
	      go away as soon as the first of the applications you are
	      launching starts. 
	    </para>
	</listitem>
      </varlistentry>
      </variablelist>
    </sect2>
  </sect1>

  <!-- #########  User Interface  ############## -->
    <sect1 id="gccui">
      <title>Look and Feel</title>
      <para>
	<indexterm id="idx-a85">
	  <primary>Gnome Control Center</primary> <secondary>Look and
	  Feel Options</secondary> </indexterm> The Look and Feel
	  capplet allows you to change the appearance of applications
	  that are Gnome compliant. You may recognize these
	  applications as ones that are pre-installed with Gnome or
	  ones that say they are built with GTK (the GIMP Toolkit).
      </para>
      <sect2 id="gccappdefaults">
	<title>Applications</title>
	<para>
	  <indexterm id="idx-a86">
	    <primary>Gnome Control Center</primary>
	    <secondary>Application Defaults</secondary>
	  </indexterm>
	  The Applications capplet allows you to change certain
	  user interface aspects of your Gnome compliant applications.
	</para>
	<important>
	  <title>IMPORTANT</title>
	  <para>
	    Although this capplet gives you great control over the look
	    and feel of your applications you should consider these tools
	    for advanced use only.
	  </para>
	</important>
	<itemizedlist mark="bullet">
	  <listitem>
	    <para>
	      <guilabel>Can detach and move menubars</guilabel> &mdash; By
	      default menubars in Gnome applications may be dragged
	      from their usual location and placed anywhere within the
	      application or desktop. If you do not wish to use this
	      feature you may turn it off.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Menus have relieved borders</guilabel> &mdash; By
	      default menubars have relieved borders. If you do not
	      like this look you may turn this feature off.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Submenus can be torn off</guilabel> &mdash; This
	      allows the submenus to have the perforated line which
	      allows you to "tear" them off an have them as a small
	      movable window.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Menu items have icons</guilabel> &mdash; Some menu
	      items in applications will have icons. If you wish not
	      to see these icons in applications that use them you may
	      turn off this feature.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Statusbar is interactive when
	      possible</guilabel> &mdash; Some applications can have the
	      status bar at the bottom become separated into its own
	      window. If you would like to have those applications
	      separate the status bar into another window you may turn
	      on this option.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Statusbar progress meter on right</guilabel> &mdash;
	      Some applications have progress meters in their
	      statusbars. By default these progress meters are on the
	      right side of the statusbar. If you wish them to be on
	      the left you may turn off this feature.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Can detach and move toolbars</guilabel> &mdash; By
	      default toolbars in Gnome applications may be dragged
	      from their usual location and placed anywhere within the
	      application or desktop. If you do not wish to use this
	      feature, you may turn it off.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Toolbars have relieved border</guilabel> &mdash; By
	      default toolbars have relieved borders. If you do not
	      like this look you may turn this feature off.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Toolbar buttons have relieved
	      border</guilabel> &mdash; By default toolbar buttons do not
	      have relieved borders in their natural state. They do,
	      however, change when the mouse is over them. If you wish
	      them to be relieved at all times you may turn on this
	      feature.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Toolbars have line separators</guilabel> &mdash; By
	      default toolbar buttons have small line separators
	      between them. If you do not wish to have the line
	      separators you may turn this feature off.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      <guilabel>Toolbars have text labels</guilabel> &mdash; By
	      default toolbar buttons have images and text to identify
	      them. If you are familiar with the buttons and do not
	      need the text you may turn on this feature.
	    </para>
	  </listitem>
	</itemizedlist>
	<figure>
	  <title>Applications Defaults Capplet</title>
	  <screenshot>
	    <screeninfo>Dialog Capplet</screeninfo>
	    <graphic format="png" fileref="figures/gccappdef" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
      </sect2>
      <sect2 id="gccdialogs"
	<title>Dialogs</title>
	<para>
	  <indexterm id="idx-a87">
	    <primary>Gnome Control Center</primary>
	    <secondary>Dialogs</secondary>
	  </indexterm>
	  The Dialogs Capplet will allow you to change the default settings for
	  dialog boxes in Gnome compliant applications.  A dialog box is a
	  window that is launched by an application to help perform a task
	  needed by that application. An example of a dialog box is a Print
	  dialog which appears when you press a print button. The dialog allows
	  you to set print options and start the print process.  The Dialogs
	  capplet will allow you to change the following options.
	</para>

	<important>
	  <title>IMPORTANT</title>
	  <para>
	    Although this capplet gives you great control over the look
	    and feel of your applications you should consider these tools
	    for advanced use only.
	  </para>
	</important>
	<para>
	  <guilabel>Dialog buttons</guilabel> &mdash; Choose to use the
	  default buttons, buttons more spread out, put buttons on the
	  edges, put the buttons on the left with left-justify, and
	  put buttons on the right with right-justify.
	</para>
	<para>
	  <guilabel>Dialog buttons have icons</guilabel> &mdash; Some
	  dialog buttons (for example <guibutton>OK</guibutton>) can
	  have icons on them. By default the applications which
	  provide this have the icons turned on. If you wish not to
	  see them you may turn off this feature.
	</para>
	<para>
	  <guilabel>Use statusbar instead of dialog when
	  possible</guilabel> &mdash; You may tell applications to use the
	  statusbar instead of a dialog if the application will allow
	  it. This will only work with dialogs that provide
	  information not one that require some interaction on your
	  part.
	</para>
	<para>
	  <guilabel>Dialog position</guilabel> &mdash; This will let you
	  choose how the dialogs appear when launched. You can let the
	  window manager decide for you (or how you have defined it in
	  the window manager configuration), center the dialogs on the
	  screen, or drop them where the mouse pointer is when they
	  are launched.
	</para>
	<para>
	  <guilabel>Dialog hints</guilabel> &mdash; This will let you change
	  the behavior of the dialog hints which are the tooltips that
	  appear when you move your mouse button over a button or part
	  of the dialog.  You may choose to have hints handled like
	  other windows, or let the window manager decide how to
	  display them.
	</para>
	<para>
	  <guilabel>Place dialogs over application window when
	  possible</guilabel> &mdash; You may choose to place dialog over
	  the applications when possible which will help you keep your
	  windows organized on your screen If you are familiar with
	  other operating systems you may wish to keep this selected
	  as this is how most operating systems handle dialogs.
	</para>
        <figure>
	  <title>Dialog Capplet</title>
	  <screenshot>
	    <screeninfo>Dialog Capplet</screeninfo>
	    <graphic format="png" fileref="figures/gccdialog" srccredit="dcm">
	    </graphic>
	  </screenshot>
        </figure>
      </sect2>
      <sect2 id="gccmdi">
	<title>MDI</title>
	<para>
	  <indexterm id="idx-a88">
	    <primary>Gnome Control Center</primary>
	    <secondary>MDI</secondary>
	  </indexterm>
	  The MDI capplet allows you to change the Multiple Document
	  Interface (MDI) mode for Gnome
	  applications, i.e. the mode of showing more than one
	  document. 
	</para>
	<para>
          Possible MDI styles are:
      </para>
      <variablelist id="mdi-modes">
	<varlistentry>
	  <term><guilabel>Toplevel</guilabel> </term>

	<listitem><para>
	      Each document is shown in a separate application window; when
	      you open a new document, a new window is created. 
	    </para>
	  </listitem>
	</varlistentry>



	<varlistentry>
	<term><guilabel>Notebook</guilabel> </term>
	  <listitem><para>
	      In this mode, you have only one application window which
              contains all documents much like your (paper) notebook
              contains many leaves: each leaf has a tab, and clicking
              on the tab brings this leaf on top. This is the default mode.
	    </para>
	  </listitem>
	</varlistentry>
	<varlistentry>

	<term><guilabel>Modal</guilabel> </term>
	  <listitem><para>
	      In this mode, you have only one application window, and
	      it only shows one document at a time. To switch to
	      another document, you must use a menu command or
	      keyboard shortcut. If you have ever used
	      <application>Emacs</application>, <guilabel>Modal</guilabel>
	      is very similar to the way <application>Emacs</application>
	      handles buffers. 
	    </para>
	  </listitem>
	</varlistentry>
      </variablelist>
      <para>
	If you have selected <guilabel>Notebook</guilabel> as your MDI
	style, you can also set <guilabel>MDI notebook tab
	position</guilabel>. Possible choices are at the top, left,
	right, or bottom of your application. 
      </para>

      <note><title>NOTE</title>
	<para>
	  Please keep in mind that these changes only affect Gnome
	  (or, to be more precise, GTK) applications. In addition,
	  many Gnome applications set their own  MDI mode rather than
	  use the mode specified in this capplet. For example,
	  <application>Gnumeric</application> always uses
	  <guilabel>Toplevel</guilabel> mode, while
	  <application>gedit</application> allows you to select
	  <guilabel>Default</guilabel> mode (in which case the mode
	  set in this capplet will be used), or override it by
	  explicitly setting one of three modes listed above. 
	</para>
      </note>


	<figure>
	  <title>MDI Capplet</title>
	  <screenshot>
	    <screeninfo>MDI Capplet</screeninfo>
	    <graphic format="png" fileref="figures/gccmdi" srccredit="dcm">
	    </graphic>
	  </screenshot>
        </figure>
      </sect2>
    </sect1>


     <!-- #########  Multimedia ############## -->
    <sect1 id="multimedia-intro">
      <title>Multimedia</title>
      <para>
	The Multimedia capplet provides control over sound and other Gnome
        multimedia functions.
      </para>
      <sect2 id="multimedia-sound">
	<title>Sound</title>
	<para>
	  The Sound capplet allows you to set the system sounds for
	  your Gnome session. It contains two tabs,
	  <guilabel>General</guilabel> and <guilabel>Sound
	  Events</guilabel>.
	</para>
	<para>
	  <guilabel>General Tab</guilabel> - At this point you have
	  two options to choose from in the
	  <guilabel>General</guilabel> tab, enabling sound for Gnome
	  and for events. If you select <guilabel>Enable sound server
	  startup</guilabel> you will make sure that Gnome's sound
	  engine (ESD) will be launched when you start Gnome.  ESD is
	  used by all Gnome applications that produce sound, so if you
	  want to hear any sound from Gnome applications you should
	  enable this option.
        </para>
      <note>
	<title>NOTE</title>
	<para>Some non-Gnome applications do not work well with
	ESD. So if you do not hear any sounds from your favorite
	<application>xgalaga</application> game or get error messages
	like <literal>Device /dev/dsp busy</literal>,  you should
	temporarily suspend ESD. You can do this using
	<application>Sound Monitor</application> applet. 
	</para>
      </note>
	<para>
	<guilabel>Sound for events</guilabel> will enable sounds
	  accompanying various "events", such as closing a window or
	  an error message. You can select sounds associted with
	  various events in the <guilabel>Sound Events</guilabel> tab
	  when those events occur. With these two items enabled, Gnome
	  will remember your sound settings whenever you log in or
	  out.
	</para>
      <figure>
	<title>The Gnome Sound Capplet</title>
	<screenshot>
	  <screeninfo>The Gnome Sound Capplet</screeninfo>
	  <graphic format="png" fileref="figures/gccsound1" srccredit="dcm">
	  </graphic>
	</screenshot>
      </figure>
	<para>
	  <guilabel>Sound Events Tab</guilabel> - This tab allows you
	  to control the sounds made by various programs and events in
	  Gnome. 
	</para>
	<para>
	  To change the sound associated with a Gnome event, select
	  the event from the hierarchical list on the left and press
	  the <guilabel>Browse</guilabel> button to find a sound file
	  on your system (file must be in <filename>wav</filename>
	  format). Press the <guilabel>Play</guilabel> button to test
	  the sound.
	</para>
      	<figure>
	  <title>The Gnome Sound Capplet</title>
	  <screenshot>
	    <screeninfo>The Gnome Sound Capplet</screeninfo>
	    <graphic format="png" fileref="figures/gccsound2" srccredit="dcm">
	    </graphic>
	  </screenshot>
	</figure>
      </sect2>
    </sect1>
  
  <!-- #########  Peripherals ############## -->
    <sect1 id="peripherals">
      <title>Peripherals</title>
	<para>
	  <indexterm id="idx-a81">
	    <primary>Gnome Control Center</primary>
	    <secondary>Peripherals</secondary>
	  </indexterm>
	  The capplets in this section of the Control Center will help
	  you configure devices such as  keyboard and
	  mouse. You may also have other peripheral devices
	  that have capplets provided for the Gnome Control
	  Center. Please refer to the documentation provided by any
	  other peripheral capplet you might have.
	</para>
    <sect2 id="gcckey">
     <title>The Keyboard Properties Capplet</title>
     <para>
     <indexterm id="idx-a82">
      <primary>Gnome Control Center</primary>
      <secondary>Keyboard</secondary>
     </indexterm>
      There are currently three settings for the keyboard in this
      capplet.  You may change the properties of
      <guilabel>Auto-repeat</guilabel>, the <guilabel>Keyboard
      Click</guilabel>, and the <guilabel>Keyboard Bell</guilabel>.
      </para>
      <para>
	<guilabel>Auto-repeat</guilabel> enables you  to hold a key down
	and have it  repeat the character at the rate  and delay you set
	in this capplet.
      </para>
      <para>
	<guilabel>Keyboard Click</guilabel> enables a small click
	sound to play at each key press. If enabled you may change the
	volume to your preference.
      </para>
      <para>
	The <guilabel>Keyboard Bell</guilabel> section allows you to
	change the bell sound that is produced by your CPU speaker
	when a keyboard error or message is sent.
      </para>
      <para>
	<guilabel>Volume</guilabel> changes the actual volume of the bell.
      </para>
      <para>
	The pitch slider will change the pitch of the note that is
	played. By default it is set to 440Hz, or the A above middle C.
      </para>
      <para>
	<guilabel>Duration</guilabel> changes the length of time the
	tone is played.
      </para>
      <para>
	The <guibutton>Test</guibutton> button will allow you to hear
	the current settings of your keyboard bell.
      </para>
      <figure>
	<title>The Keyboard Properties Capplet</title>
	<screenshot>
	  <screeninfo>The Keyboard Properties Capplet</screeninfo>
	  <graphic format="png" fileref="figures/keyboard-capplet"
	    srccredit="dcm"> 
	  </graphic>
	</screenshot>
      </figure>
    </sect2>
    <sect2 id="gccmouse" >
     <title>The Mouse Properties Capplet</title>
      <para>
	<indexterm id="idx-a83">
      <primary>Gnome Control Center</primary>
	  <secondary>Mouse</secondary>
	</indexterm>
	The Mouse Properties capplet allows you to change between left
	and right handed mouse buttons and to define the
	<guilabel>Accelerations</guilabel> and
	<guilabel>Threshold</guilabel> properties.
      </para>
      <para>
	The <guilabel>Accelerations</guilabel> setting allows you to
	change the speed the mouse moves across the screen in relation
	to the movement of the mouse on your mouse pad.  The
	<guilabel>Threshold</guilabel> setting allows you to set the
	speed at which you have to move your mouse before it starts
	the acceleration speed you have defined in the
	<guilabel>Acceleration</guilabel> setting.
	<figure>
	  <title>The Mouse Properties Capplet</title>
	  <screenshot>
	    <screeninfo>The Mouse Properties Capplet</screeninfo>
	    <graphic format="png" fileref="figures/mouse-capplet"
	    srccredit="dcm"> 
	    </graphic>
	  </screenshot>
	</figure>
      </para>
    </sect2>
  </sect1>

  
  <!-- #########  Session Group ############# -->
    <sect1 id="session">
      <title>Session</title>
    <para>
      The Session Group provides you methods of controlling various
      items that occur with the startup of your Gnome Session. These
      include session options, startup programs and startup hints.
    </para>
    <sect2 id="startup-hints">
      <title>Startup Hints</title>
      <para>
	Startup hint are short messages displayed   when you login;
	they contain tips on using Gnome and other bits of information
	you may find useful. This capplet allows you to configure
	these hints. 	
      </para>
      <para>
	The <guilabel>Enable login hints</guilabel> checkbox allows
	you to turn this feature on or off.
      </para>
      <para>
	The <guilabel>Display normal hints</guilabel> checkbox will display a
	group of hints on how to use Gnome. This is a good choice for new users
	of Gnome.
      </para>
      <para>
	The <guilabel>Display fortunes instead of hints</guilabel>
	checkbox allows you to make use of the
	<application>fortune</application> application which displays
	various <quote>fortunes</quote> and sayings. Please refer to
	the <application>fortune</application> <ulink type="man"
	url="man:fortune">documentation</ulink> for how to set it up.
      </para>
      <para>
	The <guilabel>Display message of the day instead of
	hints</guilabel> checkbox will message of the day to be
	displayed instead of hints or fortunes. The <guilabel>Message
	of the day file to use</guilabel> text box allows you to
	select the text file that will be used as the message. This is
	a good choice for system administrators to use to inform many
	users of daily news.
      </para>
      <figure>
	<title>Startup Hints Capplet</title>
	<screenshot>
	  <screeninfo>Startup Hints Capplet</screeninfo>
	  <graphic format="png" fileref="figures/gcchints" srccredit="dcm">
	  </graphic>
	</screenshot>
      </figure>
    </sect2>
    <sect2 id="startup-progs">
      <title>Session Options and  Startup Programs</title>
      <para>
        The Session Options and Startup Programs capplet allows you to
        control what programs are started at login time. Gnome
        has the concept of session management. In simple terms, it
        means that you can save your <quote>session</quote> (that is,
        information about currently working applications, their status
        and position on the screen) at any stage, and at your next
        login the same applications will reappear on your screen in
        the same positions, allowing you to continue your work. Note,
        however, this only works for Gnome compliant applications. <!--By
        default, Gnome starts some default programs, such as File
        Manager (necessary for functioning of the desktop), Panel and
        all applets in it, and some other supporting programs. But it
        can do much more than that.-->
      </para>
      <para> 
	Gnome also provides another way of starting applications at
	login. You can explicitly specify one or more commands to
	run, and Gnome will execute them at login in addition to the
	applications from your saved session.  This works for all
	kinds of applications, whether Gnome compliant or not.  
      </para>
      <para> 
	Session Options and Startup Programs capplet allows you to configure 
	all of these options, as described below. 
      </para>
      <figure>
	<title>Session Options Capplet</title>
	<screenshot>
	  <screeninfo>Session Options Capplet</screeninfo>
	  <graphic format="png" fileref="figures/gccsessopt" srccredit="sasha">
	  </graphic>
	</screenshot>
      </figure>

      <variablelist>
	<varlistentry>
	  <term><guilabel>Show splash screen on login</guilabel>
	  </term>
	  <listitem>
	  <para>
	    This option controls whether the splash screen should be
	    shown at startup. It does nothing useful, but is an eye
	    candy, so why not?
	  </para>
	</listitem>
	</varlistentry>
	<varlistentry>
	  <term><guilabel>Prompt on logout</guilabel>
	  </term>	
	  <listitem>
	  <para>
	    If this option is enabled, a confirmation dialog will
	    appear at logout. Among other things, this dialog provides
	    checkbox <guibutton>Save current setup</guibutton> (unless
	    you have set the checkbox  <guilabel>Automatically save
	    session</guilabel>, see below).  If you check this box,
	    the current session will be saved and will be restored at
	    your next login. Otherwise, the previous saved session
	    will be used.
	    </para>
	</listitem>
	</varlistentry>
	<varlistentry>
	  <term><guilabel>Automatically save session</guilabel>
	  </term>
	<listitem>
	  <para>
	    This option determines whether your current session will
	    be automatically saved at logout time or not. Note that
	    you can also manually save your session at any time by
	    selecting
            <menuchoice>
	     <guisubmenu>Settings</guisubmenu>
             <guisubmenu>Session</guisubmenu>
             <guimenuitem>Save Current Session</guimenuitem>
	    </menuchoice> from the <guimenu>Main Menu</guimenu>. 
	  </para>
	</listitem>
	</varlistentry>
	<varlistentry>
	  <term><guilabel>Choose Current Session</guilabel>
	  </term> 
        <listitem>
          <para>
              This section allows you to configure more complicated
              features of session management. These features are
              currently being developed and should be used by advanced
              users only. 
	    </para>
	    <para>
	      Gnome allows you to define several sessions. For
	      example, you could have session
	      <guilabel>Work</guilabel> in which you are using office
	      applications such as <application>Gnumeric</application>
	      spreadsheet, and another session
	      <guilabel>Net</guilabel> in which you have
	      <application>Netscape</application>,
	      <application>X-Chat</application> (IRC chat client) and
	      <application>Evolution</application> mail client
	      open. This way, you can keep the setups (i.e.,
	      information about open applications and their position
	      on screen)  for work and for net surfing separate,
	      making it easy to  switch from one to
	      another. Unfortunately, at the moment the only way to
	      switch from one session to another is by using command
	      <command>gnome-session
	      <option>--choose-session=<replaceable>SESSIONNAME</replaceable></option></command>.
	      In the future, an easier way of
	      switching will be provided. 
	    </para>
	    <para>
	      In this part of Session Properties capplet you can
	      explicitly specify under which session name you current
	      setup should be saved, but a save won't occur until you
	      specifically do so. Here, you can also create new
	      sessions, edit and delete existing sessions.
          </para>
          <para> 
            To add a new session, press the <guibutton>Add</guibutton> 
            button and enter in a new session name. This name must be
            different from existing session names. 
          </para>
          <para> 
            To edit an existing session name, highlight the session
            name you wish to edit, press the <guibutton>Edit</guibutton> button
            and edit the existing session name. The new name must be
            different from existing session names. 
          </para>
          <para> 
            To delete an existing session name, highlight the session
            name you wish to delete, press the <guibutton>Delete</guibutton>
            button.
          </para>
        </listitem>  
	</varlistentry>
      </variablelist>
        <figure>
 	  <title>Startup Programs Capplet</title>
	  <screenshot>
	    <screeninfo>Startup Programs Capplet</screeninfo>
	   <graphic format="png" fileref="figures/gccstartup" srccredit="sasha">
	    </graphic>
	  </screenshot>
        </figure>
      <itemizedlist mark="opencircle">
	<listitem>
	  <para>
	    <guilabel>Non-session managed startup programs</guilabel>
	     &mdash; In this section, you can explicitly specify the
	     commands that should be executed during login. This is
	     mostly used for programs that are not
	     Gnome-compatible. For Gnome applications, it is easier
	     just to leave them running and then save your session at
	     logout &mdash; this will ensure that they will be
	     restarted at your next login.
	  </para>
	  <para> To add a new command, press
	  <guibutton>Add</guibutton> button and enter the command to
	  run in the appearing dialog window. For example, if you want
	   <application>Netscape</application> to start  every time
	  you login, just enter <userinput>netscape</userinput> in the
	  <guilabel>Startup command</guilabel> field. 
	  </para>
	  <para> You can also specify priority, which determines the
	  order in which the programs  will be started: programs with
	  lower values are started before the ones with higher
	  values. The default value is 50, which means that the
	  program will be started after all core Gnome
	  components. Unless you know what you are doing, it is better
	  to use this default value.  
	  </para>
	  <para>
	  You can also edit or remove previously entered programs using
	  <guibutton>Edit...</guibutton> and
	  <guibutton>Remove...</guibutton> buttons.
	  </para>
	</listitem>
	<listitem>
	  <para>
	    <guilabel>Browse currently running programs</guilabel> &mdash; 
	    This button will launch <application>Session
	    properties</application> dialog which shows the state of your
	    current Gnome session &mdash; in other words, which
	    programs are currently running,  their status, priorities,
	    and more. It can also be used to remove one of the core
	    Gnome programs, such as Panel, from your session, thus
	    making sure that it won't be started next time you
	    login. 
	  </para>
	</listitem>
      </itemizedlist>
      <figure>
	<title>Session Properties Manager</title>
	<screenshot>
	  <screeninfo>Screenshot of the session properties manager.
          </screeninfo>
	  <graphic format="png" fileref="figures/gccsession-props"
	    srccredit="dcm"> 
	  </graphic>
	</screenshot>
      </figure>
    </sect2>
   </sect1>

  

<!-- ============= Authors ================================ -->

 <sect1 id="authors">
  <title>Authors</title>
  <para>
   <application>Gnome Control Center</application> was written by
     Jonathan Blandford (<email>jrb@redhat.com</email>).  Please send
     all comments, suggestions, and bug reports to the <ulink
     url="http://bugs.gnome.org" type="http">Gnome bug tracking
     database</ulink>.  (Instructions for submitting bug reports can
     be found <ulink url="http://bugs.gnome.org/Reporting.html"
     type="http"> on-line</ulink>.)  You can also use <application>Bug
     Report Tool</application> (<command>bug-buddy</command>),
     available in the <guisubmenu>Utilities</guisubmenu> submenu of
     <guimenu>Main Menu</guimenu>, for submitting bug reports.
  </para>

  <para>
   This manual was written by Dave Mason
   (<email>dcm@redhat.com</email>) and Alexander Kirillov
   (<email>kirillov@math.sunsyb.edu</email>) with some help from other members
   of Gnome Documentation Project. Please send all comments and
   suggestions regarding this manual to the <ulink type="http"
   url="http://developer.gnome.org/projects/gdp/">Gnome Documentation
   Project</ulink> by sending an email to
   <email>docs@gnome.org</email>. You can also add your comments
   online by using the <ulink type="http"
   url="http://developer.gnome.org/projects/gdp/doctable/">Gnome
   Documentation Status Table</ulink>.
  </para>
 </sect1>

  
 <!-- ============= Application License ============================= -->

 <sect1 id="license">
  <title>License</title>
  <para>
   This program is free software; you can redistribute it and/or
   modify it under the terms of the  <ulink type="help" url="gnome-help:gpl">
    <citetitle>GNU General Public License</citetitle></ulink> as
   published by the Free Software Foundation; 
   either version 2 of the License, or (at your option) any later
   version.
  </para>
  <para>
   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   <citetitle>GNU General Public License</citetitle> for more details.
  </para>
  <para>
   A copy of the <citetitle>GNU General Public License</citetitle> is
   included as an appendix to the <citetitle>Gnome Users
   Guide</citetitle>.  You may also obtain a copy of the
   <citetitle>GNU General Public License</citetitle> from the Free
   Software Foundation by visiting <ulink type="http"
   url="http://www.fsf.org">their Web site</ulink> or by writing to
   <address>
    Free Software Foundation, Inc.
    <street>59 Temple Place</street> - Suite 330
    <city>Boston</city>, <state>MA</state> <postcode>02111-1307</postcode>
    <country>USA</country>
   </address>
  </para>
 </sect1>


  </article>
