Remove unnecessary casts on g_signal_connect calls

22 files changed, 278 insertions, 222 deletions

diff --git a/accessx-status/src/applet.c b/accessx-status/src/applet.c
index 4101bb61..cba2cb86 100644
--- a/accessx-status/src/applet.c
+++ b/accessx-status/src/applet.c
@@ -143,8 +143,7 @@ help_cb (GtkAction*           action,
                                                     _("There was an error launching the help viewer: %s"),
                                                     error->message);
 
-        g_signal_connect (G_OBJECT (dialog),
-                          "response",
+        g_signal_connect (dialog, "response",
                           G_CALLBACK (gtk_widget_destroy),
                           NULL);
 
@@ -200,8 +199,7 @@ dialog_cb (GtkAction*           action,
                                                     _("There was an error launching the keyboard preferences dialog: %s"),
                                                     error->message);
 
-        g_signal_connect (G_OBJECT (dialog),
-                          "response",
+        g_signal_connect (dialog, "response",
                           G_CALLBACK (gtk_widget_destroy),
                           NULL);
 
@@ -1295,8 +1293,7 @@ popup_error_dialog (AccessxStatusApplet* sapplet)
                                      _("Error: %s"),
                                      error_txt);
 
-    g_signal_connect (G_OBJECT (dialog),
-                      "response",
+    g_signal_connect (dialog, "response",
                       G_CALLBACK (gtk_widget_destroy),
                       NULL);
 
@@ -1626,8 +1623,7 @@ accessx_status_applet_fill (MatePanelApplet* applet)
 
     if (!gtk_widget_get_realized (sapplet->box))
     {
-        g_signal_connect_after (G_OBJECT (sapplet->box),
-                                "realize",
+        g_signal_connect_after (sapplet->box, "realize",
                                 G_CALLBACK (accessx_status_applet_realize),
                                 sapplet);
     }
@@ -1638,18 +1634,16 @@ accessx_status_applet_fill (MatePanelApplet* applet)
     }
 
     g_object_connect (sapplet->applet,
-        "signal::destroy", accessx_status_applet_destroy, sapplet,
-        "signal::change_orient", accessx_status_applet_reorient, sapplet,
-        "signal::change_size", accessx_status_applet_resize, sapplet,
-        NULL);
+                      "signal::destroy", accessx_status_applet_destroy, sapplet,
+                      "signal::change_orient", accessx_status_applet_reorient, sapplet,
+                      "signal::change_size", accessx_status_applet_resize, sapplet,
+                      NULL);
 
-    g_signal_connect (sapplet->applet,
-                      "button_press_event",
+    g_signal_connect (sapplet->applet, "button_press_event",
                       G_CALLBACK (button_press_cb),
                       sapplet);
 
-    g_signal_connect (sapplet->applet,
-                      "key_press_event",
+    g_signal_connect (sapplet->applet, "key_press_event",
                       G_CALLBACK (key_press_cb),
                       sapplet);
 
diff --git a/battstat/battstat-upower.c b/battstat/battstat-upower.c
index 788adfd4..da830c2b 100644
--- a/battstat/battstat-upower.c
+++ b/battstat/battstat-upower.c
@@ -318,7 +318,7 @@ error_dialog (const char *fmt , ...)
   dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR,
                                    GTK_BUTTONS_OK, "%s", str);
 
-  g_signal_connect_swapped (G_OBJECT (dialog), "response",
+  g_signal_connect_swapped (dialog, "response",
                             G_CALLBACK (gtk_widget_destroy),
                             G_OBJECT (dialog));
 
diff --git a/battstat/battstat_applet.c b/battstat/battstat_applet.c
index d2d29134..ce1598dc 100644
--- a/battstat/battstat_applet.c
+++ b/battstat/battstat_applet.c
@@ -153,7 +153,7 @@ battstat_error_dialog (GtkWidget  *applet,
     gtk_window_set_screen (GTK_WINDOW (dialog),
                            gtk_widget_get_screen (GTK_WIDGET (applet)));
 
-    g_signal_connect_swapped (G_OBJECT (dialog), "response",
+    g_signal_connect_swapped (dialog, "response",
                               G_CALLBACK (gtk_widget_destroy),
                               G_OBJECT (dialog));
 
@@ -276,10 +276,9 @@ battery_full_dialog (GtkWidget *applet)
                                           "gtk-ok",
                                           GTK_RESPONSE_ACCEPT,
                                           NULL);
-    g_signal_connect_swapped (G_OBJECT (dialog),
-                              "response",
+    g_signal_connect_swapped (dialog, "response",
                               G_CALLBACK (gtk_widget_destroy),
-                              G_OBJECT (dialog));
+                              dialog);
 
     gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
     hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
@@ -438,8 +437,7 @@ battery_low_dialog (ProgressData  *battery,
     gtk_dialog_set_default_response (GTK_DIALOG (battery->battery_low_dialog),
                                      GTK_RESPONSE_ACCEPT);
 
-    g_signal_connect_swapped (G_OBJECT (battery->battery_low_dialog),
-                              "response",
+    g_signal_connect_swapped (battery->battery_low_dialog, "response",
                               G_CALLBACK (battery_low_dialog_destroy),
                               battery);
 
@@ -1091,18 +1089,15 @@ create_layout (ProgressData *battstat)
     gtk_widget_show_all (battstat->applet);
 
     /* Attach all sorts of signals to the applet. */
-    g_signal_connect (G_OBJECT (battstat->applet),
-                      "destroy",
+    g_signal_connect (battstat->applet, "destroy",
                       G_CALLBACK (destroy_applet),
                       battstat);
 
-    g_signal_connect (battstat->applet,
-                      "change_orient",
+    g_signal_connect (battstat->applet, "change_orient",
                       G_CALLBACK (change_orient),
                       battstat);
 
-    g_signal_connect (battstat->applet,
-                      "size_allocate",
+    g_signal_connect (battstat->applet, "size_allocate",
                       G_CALLBACK (size_allocate),
                       battstat);
 
diff --git a/battstat/power-management.c b/battstat/power-management.c
index 8a19aed2..5c4145c6 100644
--- a/battstat/power-management.c
+++ b/battstat/power-management.c
@@ -122,32 +122,32 @@ initialise_test (void)
   gtk_box_pack_start (box, gtk_label_new ("percent"), TRUE, TRUE, 0);
   w = gtk_spin_button_new_with_range (-1.0, 100.0, 1);
   gtk_spin_button_set_value (GTK_SPIN_BUTTON (w), 50.0);
-  g_signal_connect (G_OBJECT (w), "value-changed",
+  g_signal_connect (w, "value-changed",
                     G_CALLBACK (test_update_integer), &test_status.percent);
   gtk_box_pack_start (box, w, TRUE, TRUE, 0);
 
   gtk_box_pack_start (box, gtk_label_new ("minutes"), TRUE, TRUE, 0);
   w = gtk_spin_button_new_with_range (-1.0, 1000.0, 1);
   gtk_spin_button_set_value (GTK_SPIN_BUTTON (w), 180.0);
-  g_signal_connect (G_OBJECT (w), "value-changed",
+  g_signal_connect (w, "value-changed",
                     G_CALLBACK (test_update_integer), &test_status.minutes);
   gtk_box_pack_start (box, w, TRUE, TRUE, 0);
 
 
   w = gtk_toggle_button_new_with_label ("on_ac_power");
-  g_signal_connect (G_OBJECT (w), "toggled",
+  g_signal_connect (w, "toggled",
                     G_CALLBACK (test_update_boolean),
                     &test_status.on_ac_power);
   gtk_box_pack_start (box, w, TRUE, TRUE, 0);
 
   w = gtk_toggle_button_new_with_label ("charging");
-  g_signal_connect (G_OBJECT (w), "toggled",
+  g_signal_connect (w, "toggled",
                     G_CALLBACK (test_update_boolean), &test_status.charging);
   gtk_box_pack_start (box, w, TRUE, TRUE, 0);
 
   w = gtk_toggle_button_new_with_label ("present");
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (w), TRUE);
-  g_signal_connect (G_OBJECT (w), "toggled",
+  g_signal_connect (w, "toggled",
                     G_CALLBACK (test_update_boolean), &test_status.present);
   gtk_box_pack_start (box, w, TRUE, TRUE, 0);
 
diff --git a/charpick/charpick.c b/charpick/charpick.c
index 696d7067..6991b34f 100644
--- a/charpick/charpick.c
+++ b/charpick/charpick.c
@@ -308,7 +308,7 @@ populate_menu (charpick_data *curr_data)
         group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
         gtk_widget_show (menuitem);
         g_object_set_data (G_OBJECT (menuitem), "string", string);
-        g_signal_connect (G_OBJECT (menuitem), "activate",
+        g_signal_connect (menuitem, "activate",
                           G_CALLBACK (menuitem_activated),
                           curr_data);
         gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
@@ -437,11 +437,11 @@ build_table (charpick_data *p_curr_data)
         force_no_button_padding (button);
 
         gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0);
-        g_signal_connect (G_OBJECT (button), "clicked",
+        g_signal_connect (button, "clicked",
                           G_CALLBACK (chooser_button_clicked),
                           p_curr_data);
 
-        g_signal_connect (G_OBJECT (button), "button_press_event",
+        g_signal_connect (button, "button_press_event",
                           G_CALLBACK (button_press_hack),
                           p_curr_data->applet);
     }
@@ -488,11 +488,11 @@ build_table (charpick_data *p_curr_data)
         g_object_set_data (G_OBJECT (toggle_button[i]), "unichar",
                            GINT_TO_POINTER (g_utf8_get_char (label)));
 
-        g_signal_connect (G_OBJECT (toggle_button[i]), "toggled",
+        g_signal_connect (toggle_button[i], "toggled",
                           G_CALLBACK (toggle_button_toggled_cb),
                           p_curr_data);
 
-        g_signal_connect (G_OBJECT (toggle_button[i]), "button_press_event",
+        g_signal_connect (toggle_button[i], "button_press_event",
                           G_CALLBACK (button_press_hack),
                           p_curr_data->applet);
     }
@@ -774,7 +774,7 @@ charpicker_applet_fill (MatePanelApplet *applet)
                              || (orientation == MATE_PANEL_APPLET_ORIENT_RIGHT);
     build_table (curr_data);
 
-    g_signal_connect (G_OBJECT (curr_data->applet), "key_press_event",
+    g_signal_connect (curr_data->applet, "key_press_event",
                       G_CALLBACK (key_press_event), curr_data);
 
     utf8_atom = gdk_atom_intern ("UTF8_STRING", FALSE);
@@ -787,24 +787,24 @@ charpicker_applet_fill (MatePanelApplet *applet)
                               GDK_SELECTION_CLIPBOARD,
                               utf8_atom, 0);
 
-    g_signal_connect (G_OBJECT (curr_data->applet), "selection_get",
-                                G_CALLBACK (charpick_selection_handler),
-                                curr_data);
+    g_signal_connect (curr_data->applet, "selection_get",
+                      G_CALLBACK (charpick_selection_handler),
+                      curr_data);
 
-    g_signal_connect (G_OBJECT (curr_data->applet), "selection_clear_event",
+    g_signal_connect (curr_data->applet, "selection_clear_event",
                       G_CALLBACK (selection_clear_cb),
                       curr_data);
 
     make_applet_accessible (GTK_WIDGET (applet));
 
     /* session save signal */
-    g_signal_connect (G_OBJECT (applet), "change_orient",
+    g_signal_connect (applet, "change_orient",
                       G_CALLBACK (applet_change_orient), curr_data);
 
-    g_signal_connect (G_OBJECT (applet), "size_allocate",
+    g_signal_connect (applet, "size_allocate",
                       G_CALLBACK (applet_size_allocate), curr_data);
 
-    g_signal_connect (G_OBJECT (applet), "destroy",
+    g_signal_connect (applet, "destroy",
                       G_CALLBACK (applet_destroy), curr_data);
 
     gtk_widget_show_all (GTK_WIDGET (applet));
diff --git a/charpick/properties.c b/charpick/properties.c
index 66c13a68..f0693115 100644
--- a/charpick/properties.c
+++ b/charpick/properties.c
@@ -224,13 +224,11 @@ add_palette (GtkButton     *buttonk,
     if (curr_data->add_edit_dialog == NULL) {
         add_edit_dialog_create (curr_data, NULL, _("Add Palette"));
 
-        g_signal_connect (curr_data->add_edit_dialog, 
-                          "response", 
+        g_signal_connect (curr_data->add_edit_dialog, "response",
                           G_CALLBACK (add_palette_cb),
                           curr_data);
 
-        g_signal_connect (curr_data->add_edit_dialog,
-                          "destroy",
+        g_signal_connect (curr_data->add_edit_dialog, "destroy",
                           G_CALLBACK (gtk_widget_destroyed),
                           &curr_data->add_edit_dialog);
 
@@ -262,13 +260,11 @@ edit_palette (GtkButton     *button,
 
         add_edit_dialog_create (curr_data, charlist, _("Edit Palette"));
 
-        g_signal_connect (curr_data->add_edit_dialog, 
-                          "response", 
+        g_signal_connect (curr_data->add_edit_dialog, "response",
                           G_CALLBACK (edit_palette_cb),
                           curr_data);
 
-        g_signal_connect (curr_data->add_edit_dialog,
-                          "destroy",
+        g_signal_connect (curr_data->add_edit_dialog, "destroy",
                           G_CALLBACK (gtk_widget_destroyed),
                           &curr_data->add_edit_dialog);
 
@@ -381,18 +377,18 @@ create_palettes_tree (charpick_data *curr_data,
     while (list) {
         GtkTreeIter iter;
         gchar *charlist = list->data;
-        
+
         gtk_list_store_append (GTK_LIST_STORE (model), &iter);
         gtk_list_store_set (GTK_LIST_STORE (model),
                             &iter, 0,
                             charlist, 1,
                             charlist, -1);
-        
+
         list = g_list_next (list);
     }
 
     selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree));
-    g_signal_connect (G_OBJECT (selection), "changed",
+    g_signal_connect (selection, "changed",
                       G_CALLBACK (selection_changed),
                       scrolled);
 
@@ -475,12 +471,12 @@ default_chars_frame_create (charpick_data *curr_data)
                          NULL));
 
     gtk_box_pack_start (GTK_BOX (vbox2), button, FALSE, FALSE, 0);
-    g_signal_connect (G_OBJECT (button), "clicked",
-                      G_CALLBACK (add_palette), 
+    g_signal_connect (button, "clicked",
+                      G_CALLBACK (add_palette),
                       curr_data);
     set_access_namedesc (button, _("Add button"),
                          _("Click to add a new palette"));
- 
+
     button = GTK_WIDGET (g_object_new (GTK_TYPE_BUTTON,
                          "label", CHARPICK_STOCK_EDIT,
                          "use-stock", TRUE,
@@ -488,14 +484,14 @@ default_chars_frame_create (charpick_data *curr_data)
                          NULL));
 
     gtk_box_pack_start (GTK_BOX (vbox2), button, FALSE, FALSE, 0);
-    g_signal_connect (G_OBJECT (button), "clicked",
+    g_signal_connect (button, "clicked",
                       G_CALLBACK (edit_palette),
                       curr_data);
     g_object_set_data (G_OBJECT (scrolled),
                        "edit_button", button);
     set_access_namedesc (button, _("Edit button"),
                          _("Click to edit the selected palette"));
-  
+
     button = GTK_WIDGET (g_object_new (GTK_TYPE_BUTTON,
                          "label", "gtk-delete",
                          "use-stock", TRUE,
@@ -503,7 +499,7 @@ default_chars_frame_create (charpick_data *curr_data)
                          NULL));
 
     gtk_box_pack_start (GTK_BOX (vbox2), button, FALSE, FALSE, 0);
-    g_signal_connect (G_OBJECT (button), "clicked",
+    g_signal_connect (button, "clicked",
                       G_CALLBACK (delete_palette),
                       curr_data);
     g_object_set_data (G_OBJECT (scrolled),
@@ -577,8 +573,8 @@ show_preferences_dialog (GtkAction     *action,
     gtk_dialog_set_default_response (GTK_DIALOG (curr_data->propwindow), GTK_RESPONSE_CLOSE);
 
     default_chars_frame_create (curr_data);
-    g_signal_connect (G_OBJECT (curr_data->propwindow), "response",
+    g_signal_connect (curr_data->propwindow, "response",
                       G_CALLBACK (response_cb), curr_data);
-              
+
     gtk_widget_show_all (curr_data->propwindow);
 }
diff --git a/command/src/command.c b/command/src/command.c
index 231aeb45..2412d123 100644
--- a/command/src/command.c
+++ b/command/src/command.c
@@ -205,7 +205,10 @@ command_settings_callback (GtkAction *action, CommandApplet *command_applet)
                                       "on_width_spinbutton_value_changed", G_CALLBACK (width_value_changed),
                                       NULL);
     gtk_builder_connect_signals (builder, command_applet);
-    g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), dialog);
+
+    g_signal_connect (dialog, "response",
+                      G_CALLBACK (gtk_widget_destroy),
+                      dialog);
 
     g_object_unref (builder);
 
@@ -438,23 +441,23 @@ command_applet_fill (MatePanelApplet* applet)
 
     gtk_widget_show_all (GTK_WIDGET (command_applet->applet));
 
-    g_signal_connect(G_OBJECT (command_applet->applet), "destroy",
-                     G_CALLBACK (command_applet_destroy),
-                     command_applet);
+    g_signal_connect (command_applet->applet, "destroy",
+                      G_CALLBACK (command_applet_destroy),
+                      command_applet);
 
     /* GSettings signals */
-    g_signal_connect(command_applet->settings,
-                     "changed::" COMMAND_KEY,
-                     G_CALLBACK (settings_command_changed),
-                     command_applet);
-    g_signal_connect(command_applet->settings,
-                     "changed::" INTERVAL_KEY,
-                     G_CALLBACK (settings_interval_changed),
-                     command_applet);
-    g_signal_connect(command_applet->settings,
-                     "changed::" WIDTH_KEY,
-                     G_CALLBACK (settings_width_changed),
-                     command_applet);
+    g_signal_connect (command_applet->settings, "changed::" COMMAND_KEY,
+                      G_CALLBACK (settings_command_changed),
+                      command_applet);
+
+    g_signal_connect (command_applet->settings, "changed::" INTERVAL_KEY,
+                      G_CALLBACK (settings_interval_changed),
+                      command_applet);
+
+    g_signal_connect (command_applet->settings, "changed::" WIDTH_KEY,
+                      G_CALLBACK (settings_width_changed),
+                      command_applet);
+
     g_settings_bind (command_applet->settings,
                      SHOW_ICON_KEY,
                      command_applet->image,
diff --git a/cpufreq/src/cpufreq-applet.c b/cpufreq/src/cpufreq-applet.c
index eb887229..adbd0e8c 100644
--- a/cpufreq/src/cpufreq-applet.c
+++ b/cpufreq/src/cpufreq-applet.c
@@ -799,27 +799,27 @@ cpufreq_applet_setup (CPUFreqApplet *applet)
     settings = mate_panel_applet_settings_new (MATE_PANEL_APPLET (applet), "org.mate.panel.applet.cpufreq");
     applet->prefs = cpufreq_prefs_new (settings);
 
-    g_signal_connect (G_OBJECT (applet->prefs),
-                      "notify::cpu",
+    g_signal_connect (applet->prefs, "notify::cpu",
                       G_CALLBACK (cpufreq_applet_prefs_cpu_changed),
-                      (gpointer) applet);
-    g_signal_connect (G_OBJECT (applet->prefs),
-                      "notify::show-mode",
+                      applet);
+
+    g_signal_connect (applet->prefs, "notify::show-mode",
                       G_CALLBACK (cpufreq_applet_prefs_show_mode_changed),
-                      (gpointer) applet);
-    g_signal_connect (G_OBJECT (applet->prefs),
-                      "notify::show-text-mode",
+                      applet);
+
+    g_signal_connect (applet->prefs, "notify::show-text-mode",
                       G_CALLBACK (cpufreq_applet_prefs_show_mode_changed),
-                      (gpointer) applet);
+                      applet);
 
     /* Monitor */
     applet->monitor =
         cpufreq_monitor_factory_create_monitor (cpufreq_prefs_get_cpu (applet->prefs));
 
     cpufreq_monitor_run (applet->monitor);
-    g_signal_connect_swapped (G_OBJECT (applet->monitor), "changed",
+
+    g_signal_connect_swapped (applet->monitor, "changed",
                               G_CALLBACK (cpufreq_applet_update),
-                              (gpointer) applet);
+                              applet);
 
     /* Setup the menus */
     action_group = gtk_action_group_new ("CPUFreq Applet Actions");
diff --git a/cpufreq/src/cpufreq-popup.c b/cpufreq/src/cpufreq-popup.c
index 56c1b0d0..456a60a6 100644
--- a/cpufreq/src/cpufreq-popup.c
+++ b/cpufreq/src/cpufreq-popup.c
@@ -244,14 +244,14 @@ cpufreq_popup_menu_add_action (CPUFreqPopup   *popup,
 
         g_signal_connect (action, "activate",
                           G_CALLBACK (cpufreq_popup_frequencies_menu_activate),
-                                      (gpointer) popup);
+                          popup);
     } else if (g_ascii_strcasecmp (menu, "Governor") == 0) {
         popup->priv->govs_actions = g_slist_prepend (popup->priv->govs_actions,
                                                      (gpointer) action);
 
         g_signal_connect (action, "activate",
                           G_CALLBACK (cpufreq_popup_governors_menu_activate),
-                          (gpointer) popup);
+                          popup);
     }
 
     gtk_action_group_add_action (action_group, GTK_ACTION (action));
diff --git a/cpufreq/src/cpufreq-prefs.c b/cpufreq/src/cpufreq-prefs.c
index 5682e5e5..f0e60bf0 100644
--- a/cpufreq/src/cpufreq-prefs.c
+++ b/cpufreq/src/cpufreq-prefs.c
@@ -553,25 +553,29 @@ cpufreq_prefs_dialog_create (CPUFreqPrefs *prefs)
     if (cpufreq_utils_get_n_cpus () > 1)
         cpufreq_prefs_dialog_cpu_combo_setup (prefs);
 
-    g_signal_connect_swapped (G_OBJECT (prefs->priv->dialog), "response",
+    g_signal_connect_swapped (prefs->priv->dialog, "response",
                               G_CALLBACK (cpufreq_prefs_dialog_response_cb),
-                              (gpointer) prefs);
+                              prefs);
 
-    g_signal_connect (G_OBJECT (prefs->priv->show_freq), "toggled",
+    g_signal_connect (prefs->priv->show_freq, "toggled",
                       G_CALLBACK (cpufreq_prefs_dialog_show_freq_toggled),
-                      (gpointer) prefs);
-    g_signal_connect (G_OBJECT (prefs->priv->show_unit), "toggled",
+                      prefs);
+
+    g_signal_connect (prefs->priv->show_unit, "toggled",
                       G_CALLBACK (cpufreq_prefs_dialog_show_unit_toggled),
-                      (gpointer) prefs);
-    g_signal_connect (G_OBJECT (prefs->priv->show_perc), "toggled",
+                      prefs);
+
+    g_signal_connect (prefs->priv->show_perc, "toggled",
                       G_CALLBACK (cpufreq_prefs_dialog_show_perc_toggled),
-                      (gpointer) prefs);
-    g_signal_connect (G_OBJECT (prefs->priv->cpu_combo), "changed",
+                      prefs);
+
+    g_signal_connect (prefs->priv->cpu_combo, "changed",
                       G_CALLBACK (cpufreq_prefs_dialog_cpu_number_changed),
-                      (gpointer) prefs);
-    g_signal_connect (G_OBJECT (prefs->priv->show_mode_combo), "changed",
+                      prefs);
+
+    g_signal_connect (prefs->priv->show_mode_combo, "changed",
                       G_CALLBACK (cpufreq_prefs_dialog_show_mode_changed),
-                      (gpointer) prefs);
+                      prefs);
 }
 
 void
diff --git a/cpufreq/src/cpufreq-utils.c b/cpufreq/src/cpufreq-utils.c
index a49d27c6..736806e8 100644
--- a/cpufreq/src/cpufreq-utils.c
+++ b/cpufreq/src/cpufreq-utils.c
@@ -99,9 +99,9 @@ cpufreq_utils_display_error (const gchar *message,
 
     gtk_window_set_title (GTK_WINDOW (dialog), ""); /* as per HIG */
     gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE);
-    g_signal_connect (G_OBJECT (dialog),
-                      "response",
-                      G_CALLBACK (gtk_widget_destroy), NULL);
+    g_signal_connect (dialog, "response",
+                      G_CALLBACK (gtk_widget_destroy),
+                      NULL);
     gtk_widget_show (dialog);
 }
 
diff --git a/drivemount/src/drive-button.c b/drivemount/src/drive-button.c
index f64f38c4..95472c86 100644
--- a/drivemount/src/drive-button.c
+++ b/drivemount/src/drive-button.c
@@ -113,9 +113,10 @@ drive_button_new (GVolume *volume)
     self = g_object_new (DRIVE_TYPE_BUTTON, NULL);
     if (volume != NULL) {
       drive_button_set_volume (self, volume);
-      g_signal_connect (gtk_icon_theme_get_default (),
-          "changed", G_CALLBACK (drive_button_theme_change),
-          self);
+
+      g_signal_connect (gtk_icon_theme_get_default (), "changed",
+                        G_CALLBACK (drive_button_theme_change),
+                        self);
     }
 
     return (GtkWidget *)self;
@@ -129,9 +130,9 @@ drive_button_new_from_mount (GMount *mount)
     self = g_object_new (DRIVE_TYPE_BUTTON, NULL);
     drive_button_set_mount (self, mount);
 
-    g_signal_connect (gtk_icon_theme_get_default (),
-        "changed", G_CALLBACK (drive_button_theme_change),
-        self);
+    g_signal_connect (gtk_icon_theme_get_default (), "changed",
+                      G_CALLBACK (drive_button_theme_change),
+                      self);
 
     return (GtkWidget *)self;
 }
@@ -538,7 +539,8 @@ create_menu_item (DriveButton *self,
         gtk_widget_show (image);
     }
     if (callback)
-        g_signal_connect_object (item, "activate", callback, self,
+        g_signal_connect_object (item, "activate",
+                                 callback, self,
                                  G_CONNECT_SWAPPED);
     gtk_widget_set_sensitive (item, sensitive);
     gtk_widget_show (item);
@@ -599,8 +601,11 @@ open_drive (DriveButton *self,
             gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "%s", error->message);
         else
             gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "Could not find Caja");
+
         g_signal_connect (dialog, "response",
-                          G_CALLBACK (gtk_widget_destroy), NULL);
+                          G_CALLBACK (gtk_widget_destroy),
+                          NULL);
+
         gtk_widget_show (dialog);
         g_error_free (error);
     }
diff --git a/geyes/src/geyes.c b/geyes/src/geyes.c
index 3c8b182c..7fca8539 100644
--- a/geyes/src/geyes.c
+++ b/geyes/src/geyes.c
@@ -349,7 +349,7 @@ help_cb (GtkAction  *action,
                                       GTK_BUTTONS_CLOSE,
                                       _("There was an error displaying help: %s"),
                                       error->message);
-        g_signal_connect (G_OBJECT (dialog), "response",
+        g_signal_connect (dialog, "response",
                           G_CALLBACK (gtk_widget_destroy),
                           NULL);
         gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
@@ -427,8 +427,7 @@ geyes_applet_fill (MatePanelApplet *applet)
     set_atk_name_description (GTK_WIDGET (eyes_applet->applet), _("Eyes"),
                               _("The eyes look in the direction of the mouse pointer"));
 
-    g_signal_connect (eyes_applet->vbox,
-                      "destroy",
+    g_signal_connect (eyes_applet->vbox, "destroy",
                       G_CALLBACK (destroy_cb),
                       eyes_applet);
 
diff --git a/geyes/src/themes.c b/geyes/src/themes.c
index 726af951..e9ebe24b 100644
--- a/geyes/src/themes.c
+++ b/geyes/src/themes.c
@@ -225,7 +225,7 @@ phelp_cb (GtkDialog *dialog)
                                       GTK_BUTTONS_CLOSE,
                                       _("There was an error displaying help: %s"),
                                       error->message);
-        g_signal_connect (G_OBJECT (error_dialog), "response",
+        g_signal_connect (error_dialog, "response",
                           G_CALLBACK (gtk_widget_destroy),
                           NULL);
         gtk_window_set_resizable (GTK_WINDOW (error_dialog), FALSE);
diff --git a/mateweather/src/mateweather-applet.c b/mateweather/src/mateweather-applet.c
index d32d88bb..3165607e 100644
--- a/mateweather/src/mateweather-applet.c
+++ b/mateweather/src/mateweather-applet.c
@@ -61,7 +61,9 @@ static void help_cb (GtkAction      *action,
     if (error) {
 	GtkWidget *dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
 						    _("There was an error displaying help: %s"), error->message);
-	g_signal_connect (G_OBJECT (dialog), "response", G_CALLBACK (gtk_widget_destroy), NULL);
+	g_signal_connect (dialog, "response",
+	                  G_CALLBACK (gtk_widget_destroy),
+	                  NULL);
 	gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
 	gtk_window_set_screen (GTK_WINDOW (dialog), gtk_widget_get_screen (GTK_WIDGET (gw_applet->applet)));
 	gtk_widget_show (dialog);
@@ -344,16 +346,25 @@ void mateweather_applet_create (MateWeatherApplet *gw_applet)
 
     gtk_window_set_default_icon_name ("weather-storm");
 
-    g_signal_connect (G_OBJECT(gw_applet->applet), "change_orient",
-                       G_CALLBACK(change_orient_cb), gw_applet);
-    g_signal_connect (G_OBJECT(gw_applet->applet), "size_allocate",
-                       G_CALLBACK(size_allocate_cb), gw_applet);
-    g_signal_connect (G_OBJECT(gw_applet->applet), "destroy",
-                       G_CALLBACK (applet_destroy), gw_applet);
-    g_signal_connect (G_OBJECT(gw_applet->applet), "button_press_event",
-                       G_CALLBACK(clicked_cb), gw_applet);
-    g_signal_connect (G_OBJECT(gw_applet->applet), "key_press_event",
-			G_CALLBACK(key_press_cb), gw_applet);
+    g_signal_connect (gw_applet->applet, "change_orient",
+                      G_CALLBACK (change_orient_cb),
+                      gw_applet);
+
+    g_signal_connect (gw_applet->applet, "size_allocate",
+                      G_CALLBACK (size_allocate_cb),
+                      gw_applet);
+
+    g_signal_connect (gw_applet->applet, "destroy",
+                      G_CALLBACK (applet_destroy),
+                      gw_applet);
+
+    g_signal_connect (gw_applet->applet, "button_press_event",
+                      G_CALLBACK(clicked_cb),
+                      gw_applet);
+
+    g_signal_connect (gw_applet->applet, "key_press_event",
+                      G_CALLBACK (key_press_cb),
+                      gw_applet);
 
     gtk_widget_set_tooltip_text (GTK_WIDGET(gw_applet->applet), _("MATE Weather"));
 
@@ -387,7 +398,9 @@ void mateweather_applet_create (MateWeatherApplet *gw_applet)
 
     monitor = g_network_monitor_get_default();
     g_signal_connect (monitor, "network-changed",
-                      G_CALLBACK (network_changed), gw_applet);}
+                      G_CALLBACK (network_changed),
+                      gw_applet);
+}
 
 gint timeout_cb (gpointer data)
 {
diff --git a/mateweather/src/mateweather-pref.c b/mateweather/src/mateweather-pref.c
index c0408a68..12ef8864 100644
--- a/mateweather/src/mateweather-pref.c
+++ b/mateweather/src/mateweather-pref.c
@@ -772,7 +772,9 @@ static void help_cb(GtkDialog* dialog, MateWeatherPref* pref)
 	if (error)
 	{
 		GtkWidget* error_dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, _("There was an error displaying help: %s"), error->message);
-		g_signal_connect (G_OBJECT (error_dialog), "response", G_CALLBACK (gtk_widget_destroy), NULL);
+		g_signal_connect (error_dialog, "response",
+		                  G_CALLBACK (gtk_widget_destroy),
+		                  NULL);
 		gtk_window_set_resizable (GTK_WINDOW (error_dialog), FALSE);
 		gtk_window_set_screen (GTK_WINDOW (error_dialog), gtk_widget_get_screen (GTK_WIDGET (dialog)));
 		gtk_widget_show (error_dialog);
diff --git a/multiload/src/load-graph.c b/multiload/src/load-graph.c
index fbff7d7d..23fbacde 100644
--- a/multiload/src/load-graph.c
+++ b/multiload/src/load-graph.c
@@ -471,17 +471,17 @@ load_graph_new (MultiloadApplet *ma, guint n, const gchar *label,
                                     GDK_LEAVE_NOTIFY_MASK |
                                     GDK_BUTTON_PRESS_MASK);
 
-    g_signal_connect (G_OBJECT (g->disp), "draw",
+    g_signal_connect (g->disp, "draw",
                       G_CALLBACK (load_graph_expose), g);
-    g_signal_connect (G_OBJECT(g->disp), "configure_event",
+    g_signal_connect (g->disp, "configure_event",
                       G_CALLBACK (load_graph_configure), g);
-    g_signal_connect (G_OBJECT(g->disp), "destroy",
+    g_signal_connect (g->disp, "destroy",
                       G_CALLBACK (load_graph_destroy), g);
-    g_signal_connect (G_OBJECT(g->disp), "button-press-event",
+    g_signal_connect (g->disp, "button-press-event",
                       G_CALLBACK (load_graph_clicked), g);
-    g_signal_connect (G_OBJECT(g->disp), "enter-notify-event",
+    g_signal_connect (g->disp, "enter-notify-event",
                       G_CALLBACK(load_graph_enter_cb), g);
-    g_signal_connect (G_OBJECT(g->disp), "leave-notify-event",
+    g_signal_connect (g->disp, "leave-notify-event",
                       G_CALLBACK(load_graph_leave_cb), g);
 
     gtk_box_pack_start (GTK_BOX (g->box), g->disp, TRUE, TRUE, 0);
diff --git a/multiload/src/main.c b/multiload/src/main.c
index 124020ba..3d88e6b0 100644
--- a/multiload/src/main.c
+++ b/multiload/src/main.c
@@ -533,16 +533,16 @@ multiload_applet_new(MatePanelApplet *applet, const gchar *iid, gpointer data)
 
     g_object_unref (action_group);
 
-    g_signal_connect(G_OBJECT(applet), "change_size",
-                     G_CALLBACK(multiload_change_size_cb), ma);
-    g_signal_connect(G_OBJECT(applet), "change_orient",
-                     G_CALLBACK(multiload_change_orient_cb), ma);
-    g_signal_connect(G_OBJECT(applet), "destroy",
-                     G_CALLBACK(multiload_destroy_cb), ma);
-    g_signal_connect(G_OBJECT(applet), "button_press_event",
-                     G_CALLBACK(multiload_button_press_event_cb), ma);
-    g_signal_connect(G_OBJECT(applet), "key_press_event",
-                     G_CALLBACK(multiload_key_press_event_cb), ma);
+    g_signal_connect (applet, "change_size",
+                      G_CALLBACK (multiload_change_size_cb), ma);
+    g_signal_connect (applet, "change_orient",
+                      G_CALLBACK (multiload_change_orient_cb), ma);
+    g_signal_connect (applet, "destroy",
+                      G_CALLBACK (multiload_destroy_cb), ma);
+    g_signal_connect (applet, "button_press_event",
+                      G_CALLBACK (multiload_button_press_event_cb), ma);
+    g_signal_connect (applet, "key_press_event",
+                      G_CALLBACK (multiload_key_press_event_cb), ma);
 
     multiload_applet_refresh (ma);
 
diff --git a/stickynotes/stickynotes.c b/stickynotes/stickynotes.c
index 21ea7c3b..be05a5fb 100644
--- a/stickynotes/stickynotes.c
+++ b/stickynotes/stickynotes.c
@@ -261,79 +261,122 @@ stickynote_new_aux (GdkScreen *screen,
      * we would have an invalid GtkMenu. We need to ref it.
      */
     g_object_ref (note->w_menu);
-    g_signal_connect (G_OBJECT (note->w_window), "button-press-event",
-                      G_CALLBACK (stickynote_show_popup_menu), note->w_menu);
 
-    g_signal_connect (G_OBJECT (note->w_lock), "button-press-event",
-                      G_CALLBACK (stickynote_show_popup_menu), note->w_menu);
+    g_signal_connect (note->w_window, "button-press-event",
+                      G_CALLBACK (stickynote_show_popup_menu),
+                      note->w_menu);
 
-    g_signal_connect (G_OBJECT (note->w_close), "button-press-event",
-                      G_CALLBACK (stickynote_show_popup_menu), note->w_menu);
+    g_signal_connect (note->w_lock, "button-press-event",
+                      G_CALLBACK (stickynote_show_popup_menu),
+                      note->w_menu);
 
-    g_signal_connect (G_OBJECT (note->w_resize_se), "button-press-event",
-                      G_CALLBACK (stickynote_show_popup_menu), note->w_menu);
+    g_signal_connect (note->w_close, "button-press-event",
+                      G_CALLBACK (stickynote_show_popup_menu),
+                      note->w_menu);
 
-    g_signal_connect (G_OBJECT (note->w_resize_sw), "button-press-event",
-                      G_CALLBACK (stickynote_show_popup_menu), note->w_menu);
+    g_signal_connect (note->w_resize_se, "button-press-event",
+                      G_CALLBACK (stickynote_show_popup_menu),
+                      note->w_menu);
+
+    g_signal_connect (note->w_resize_sw, "button-press-event",
+                      G_CALLBACK (stickynote_show_popup_menu),
+                      note->w_menu);
 
     /* Connect a properties dialog to the note */
     gtk_window_set_transient_for (GTK_WINDOW (note->w_properties),
                                   GTK_WINDOW (note->w_window));
     gtk_dialog_set_default_response (GTK_DIALOG (note->w_properties),
                                      GTK_RESPONSE_CLOSE);
-    g_signal_connect (G_OBJECT (note->w_properties), "response",
-                      G_CALLBACK (response_cb), note);
+    g_signal_connect (note->w_properties, "response",
+                      G_CALLBACK (response_cb),
+                      note);
 
     /* Connect signals to the sticky note */
-    g_signal_connect (G_OBJECT (note->w_lock), "clicked",
-                      G_CALLBACK (stickynote_toggle_lock_cb), note);
-    g_signal_connect (G_OBJECT (note->w_close), "clicked",
-                      G_CALLBACK (stickynote_close_cb), note);
-    g_signal_connect (G_OBJECT (note->w_resize_se), "button-press-event",
-                      G_CALLBACK (stickynote_resize_cb), note);
-    g_signal_connect (G_OBJECT (note->w_resize_sw), "button-press-event",
-                      G_CALLBACK (stickynote_resize_cb), note);
-
-    g_signal_connect (G_OBJECT (note->w_window), "button-press-event",
-                      G_CALLBACK (stickynote_move_cb), note);
-    g_signal_connect (G_OBJECT (note->w_window), "configure-event",
-                      G_CALLBACK (stickynote_configure_cb), note);
-    g_signal_connect (G_OBJECT (note->w_window), "delete-event",
-                      G_CALLBACK (stickynote_delete_cb), note);
-
-    g_signal_connect (gtk_builder_get_object (builder, "popup_create"),
-                      "activate", G_CALLBACK (popup_create_cb), note);
-    g_signal_connect (gtk_builder_get_object (builder, "popup_destroy"),
-                      "activate", G_CALLBACK (popup_destroy_cb), note);
-    g_signal_connect (gtk_builder_get_object (builder, "popup_toggle_lock"),
-                      "toggled", G_CALLBACK (popup_toggle_lock_cb), note);
-    g_signal_connect (gtk_builder_get_object (builder, "popup_properties"),
-                      "activate", G_CALLBACK (popup_properties_cb), note);
-
-    g_signal_connect_swapped (G_OBJECT (note->w_entry), "changed",
-                              G_CALLBACK (properties_apply_title_cb), note);
-    g_signal_connect (G_OBJECT (note->w_color), "color-set",
-                      G_CALLBACK (properties_color_cb), note);
-    g_signal_connect (G_OBJECT (note->w_font_color), "color-set",
-                      G_CALLBACK (properties_color_cb), note);
-    g_signal_connect_swapped (G_OBJECT (note->w_def_color), "toggled",
-                              G_CALLBACK (properties_apply_color_cb), note);
-    g_signal_connect (G_OBJECT (note->w_font), "font-set",
-                      G_CALLBACK (properties_font_cb), note);
-    g_signal_connect_swapped (G_OBJECT (note->w_def_font), "toggled",
-                              G_CALLBACK (properties_apply_font_cb), note);
-    g_signal_connect (G_OBJECT (note->w_entry), "activate",
-                      G_CALLBACK (properties_activate_cb), note);
-    g_signal_connect (G_OBJECT (note->w_properties), "delete-event",
-                      G_CALLBACK (gtk_widget_hide), note);
+    g_signal_connect (note->w_lock, "clicked",
+                      G_CALLBACK (stickynote_toggle_lock_cb),
+                      note);
+
+    g_signal_connect (note->w_close, "clicked",
+                      G_CALLBACK (stickynote_close_cb),
+                      note);
+
+    g_signal_connect (note->w_resize_se, "button-press-event",
+                      G_CALLBACK (stickynote_resize_cb),
+                      note);
+
+    g_signal_connect (note->w_resize_sw, "button-press-event",
+                      G_CALLBACK (stickynote_resize_cb),
+                      note);
+
+    g_signal_connect (note->w_window, "button-press-event",
+                      G_CALLBACK (stickynote_move_cb),
+                      note);
+
+    g_signal_connect (note->w_window, "configure-event",
+                      G_CALLBACK (stickynote_configure_cb),
+                      note);
+
+    g_signal_connect (note->w_window, "delete-event",
+                      G_CALLBACK (stickynote_delete_cb),
+                      note);
+
+    g_signal_connect (gtk_builder_get_object (builder, "popup_create"), "activate",
+                      G_CALLBACK (popup_create_cb),
+                      note);
+
+    g_signal_connect (gtk_builder_get_object (builder, "popup_destroy"), "activate",
+                      G_CALLBACK (popup_destroy_cb),
+                      note);
+
+    g_signal_connect (gtk_builder_get_object (builder, "popup_toggle_lock"), "toggled",
+                      G_CALLBACK (popup_toggle_lock_cb),
+                      note);
+
+    g_signal_connect (gtk_builder_get_object (builder, "popup_properties"), "activate",
+                      G_CALLBACK (popup_properties_cb),
+                      note);
+
+    g_signal_connect_swapped (note->w_entry, "changed",
+                              G_CALLBACK (properties_apply_title_cb),
+                              note);
+
+    g_signal_connect (note->w_color, "color-set",
+                      G_CALLBACK (properties_color_cb),
+                      note);
+
+    g_signal_connect (note->w_font_color, "color-set",
+                      G_CALLBACK (properties_color_cb),
+                      note);
+
+    g_signal_connect_swapped (note->w_def_color, "toggled",
+                              G_CALLBACK (properties_apply_color_cb),
+                              note);
+
+    g_signal_connect (note->w_font, "font-set",
+                      G_CALLBACK (properties_font_cb),
+                      note);
+
+    g_signal_connect_swapped (note->w_def_font, "toggled",
+                              G_CALLBACK (properties_apply_font_cb),
+                              note);
+
+    g_signal_connect (note->w_entry, "activate",
+                      G_CALLBACK (properties_activate_cb),
+                      note);
+
+    g_signal_connect (note->w_properties, "delete-event",
+                      G_CALLBACK (gtk_widget_hide),
+                      note);
 
     g_object_unref (builder);
 
     g_signal_connect_after (note->w_body, "button-press-event",
-                            G_CALLBACK (gtk_true), note);
+                            G_CALLBACK (gtk_true),
+                            note);
 
-    g_signal_connect (gtk_text_view_get_buffer (GTK_TEXT_VIEW (note->w_body)),
-                      "changed", G_CALLBACK (buffer_changed), note);
+    g_signal_connect (gtk_text_view_get_buffer (GTK_TEXT_VIEW (note->w_body)), "changed",
+                      G_CALLBACK (buffer_changed),
+                      note);
 
     return note;
 }
diff --git a/stickynotes/stickynotes_applet_callbacks.c b/stickynotes/stickynotes_applet_callbacks.c
index 4e006bd2..7b454f5b 100644
--- a/stickynotes/stickynotes_applet_callbacks.c
+++ b/stickynotes/stickynotes_applet_callbacks.c
@@ -383,8 +383,7 @@ menu_help_cb (GtkAction         *action,
                                                     _("There was an error displaying help: %s"),
                                                     error->message);
 
-        g_signal_connect (dialog,
-                          "response",
+        g_signal_connect (dialog, "response",
                           G_CALLBACK (gtk_widget_destroy),
                           NULL);
 
@@ -612,12 +611,10 @@ preferences_response_cb (GtkWidget *dialog,
                                              _("There was an error displaying help: %s"),
                                              error->message);
 
-            g_signal_connect (G_OBJECT (dialog),
-                              "response",
+            g_signal_connect (dialog, "response",
                               G_CALLBACK (gtk_widget_destroy),
                               NULL);
-            gtk_window_set_resizable (GTK_WINDOW (dialog),
-                                      FALSE);
+            gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
             gtk_window_set_screen (GTK_WINDOW (dialog),
                                    gtk_widget_get_screen (GTK_WIDGET (dialog)));
             gtk_widget_show (dialog);
diff --git a/timerapplet/src/timerapplet.c b/timerapplet/src/timerapplet.c
index 6e1fc2d4..e72d8e21 100644
--- a/timerapplet/src/timerapplet.c
+++ b/timerapplet/src/timerapplet.c
@@ -333,7 +333,10 @@ timer_preferences_callback (GtkAction *action, TimerApplet *applet)
                                       "on_seconds_spinbutton_value_changed", G_CALLBACK (timer_spin_button_value_changed),
                                       NULL);
     gtk_builder_connect_signals (builder, applet);
-    g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), dialog);
+
+    g_signal_connect (dialog, "response",
+                      G_CALLBACK (gtk_widget_destroy),
+                      dialog);
 
     g_object_unref (builder);
 
@@ -400,12 +403,13 @@ timer_applet_fill (MatePanelApplet* applet_widget)
     gtk_widget_show_all (GTK_WIDGET (applet->applet));
     gtk_widget_hide (GTK_WIDGET (applet->pause_image));
 
-    g_signal_connect(G_OBJECT (applet->applet), "destroy",
-                     G_CALLBACK (timer_applet_destroy),
-                     applet);
+    g_signal_connect (applet->applet, "destroy",
+                      G_CALLBACK (timer_applet_destroy),
+                      applet);
 
-    g_signal_connect_swapped(GTK_WIDGET (applet->applet), "button-release-event",
-                             G_CALLBACK (timer_applet_click), applet);
+    g_signal_connect_swapped (applet->applet, "button-release-event",
+                              G_CALLBACK (timer_applet_click),
+                              applet);
 
     /* set up context menu */
     applet->action_group = gtk_action_group_new ("Timer Applet Actions");
@@ -418,8 +422,9 @@ timer_applet_fill (MatePanelApplet* applet_widget)
     timer_callback (applet);
 
     /* GSettings callback */
-    g_signal_connect (G_OBJECT (applet->settings), "changed",
-                      G_CALLBACK (timer_settings_changed), applet);
+    g_signal_connect (applet->settings, "changed",
+                      G_CALLBACK (timer_settings_changed),
+                      applet);
 
     return TRUE;
 }
diff --git a/trashapplet/src/trashapplet.c b/trashapplet/src/trashapplet.c
index 3e98f283..2ba46c7c 100644
--- a/trashapplet/src/trashapplet.c
+++ b/trashapplet/src/trashapplet.c
@@ -339,7 +339,7 @@ error_dialog (TrashApplet *applet, const gchar *error, ...)
                                    GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                                    "%s", error_string);
 
-  g_signal_connect (G_OBJECT (dialog), "response",
+  g_signal_connect (dialog, "response",
                     G_CALLBACK (gtk_widget_destroy),
                     NULL);