Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Contact Us
Online Help
Domain Status
Man Pages

Virtual Servers

Topology Map

Server Agreement
Year 2038

USA Flag



Man Pages

Manual Reference Pages  -  GNOME2::GCONF (3)

.ds Aq ’


Gnome2::GConf - Perl wrappers for the GConf configuration engine.



  use Gnome2::GConf;

  my $client = Gnome2::GConf::Client->get_default;
  my $app_key = "/apps/myapp/mykey";
  $client->add_dir($app_key, preload-none);
  # add a notify for the key
  my $notify_id = $client->notify_add($app_key, sub {
      my ($client, $cnxn_id, $entry) = @_;
      return unless $entry->{value};
      if ($entry->{value}->{type} eq string) {
        printf "key %s changed to %s\n",
  my $string = $client->get_string($app_key);
  $string = some string unless $string;
  $client->set($app_key, { type => string, data => $string });
  # set a schema for the key
  $client->set_schema ($app_key,
        type => string,
        locale => C,
        short_desc => Some key.,
        long_desc => This key does something.,
        owner => some_program
  # remove the notification callback


Perl bindings to the 2.2 series of the GConf configuration engine libraries, for use with gtk2-perl.


This module allows you to use the GConf configuration system in order to store/retrieve the configuration of an application. The GConf system is a powerful configuration manager based on a user daemon that handles a set of key and value pairs, and notifies any changes of the value to every program that monitors those keys. GConf is used by GNOME 2.x.

To discuss gtk2-perl, ask questions and flame/praise the authors, join at

Find out more about Gnome at


Some opaque data types in GConf are not registered inside the Glib type system. Thus, they have been implemented in a more perlish way, when possible, for the sake of coherency and following the principle of least surprise for the perl developer. These changes try to preserve semantics, to add syntactic sugar and to remove the need for accessor methods.
GConfEntry See Gnome2::GConf::Entry
GConfValue See Gnome2::GConf::Value
GConfChangeSet See Gnome2::GConf::ChangeSet
GConfSchema See Gnome2::GConf::Schema


Reflecting the changes operated for the data types, some methods that use those type have had the call signature modified.
GConfNotifyFunc In C, the function passed to Gnome2::GConf::notify_add must have the following signature:

        void (GConfNotifyFunc *) (GConfClient * client,
                                  guint cnxn_id,
                                  GConfEntry * entry);

Where GConfEntry is a container for the key/value pair. Since in perl there’s no GConfEntry (see above), the entry parameter is an hashref.

GConfClient::set In C, these accessor methods return/use a GConfValue. In perl, they return/use an hashref. See Gnome2::GConf::Value
GConfClient::set_list These accessor methods use a string for setting the type of the lists (lists may have values of only <B>oneB> type), and an arrayref containing the values.
GConfClient::set_pair These accessor methods use two hashref (representing GConfValues) for the car and the cdr parameters.
GConfClient::set_schema Similarly to the get/set pair above, these two methods return/use an hashref. See Gnome2::GConf::Schema.
GConfClient::commit_change_set In C, this method return a boolean value (TRUE on success, FALSE on failure). On user request (using the boolean parameter remove_committed), it also returns the GConfChangeSet, pruned of the successfully committed keys. In perl, this method returns a boolean value both in scalar context or if the user sets to FALSE the remove_committed parameter; in array context or if the user requests the uncommitted keys, returns both the return value and the pruned GConfChangeSet.


perl(1), Glib(3pm).


Emmanuele Bassi <>

gtk2-perl created by the gtk2-perl team:


Copyright 2003-2006 by Emmanuele Bassi

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library 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 GNU Library General Public License for more details.

You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA.

Search for    or go to Top of page |  Section 3 |  Main Index

perl v5.20.3 GCONF (3) 2007-09-29

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.