[gtk+] gdk: Document GdkDisplay::setting-changed

[Matthias Clasen <matthiasc src gnome org>]

commit ffe838e7de49e038ccd35ce3533f0385d2c0d8b4
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 26 09:30:44 2017 -0500

    gdk: Document GdkDisplay::setting-changed
    
    New api needs documentation.

 gdk/gdkdisplay.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkdisplay.c b/gdk/gdkdisplay.c
index f56c8ef..1d0319a 100644
--- a/gdk/gdkdisplay.c
+++ b/gdk/gdkdisplay.c
@@ -319,6 +319,16 @@ gdk_display_class_init (GdkDisplayClass *class)
                   g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE, 1, GDK_TYPE_MONITOR);
 
+  /**
+   * GdkDisplay::setting-changed:
+   * @display: the object on which the signal is emitted
+   * @setting: the name of the setting that changed
+   *
+   * The ::setting-changed signal is emitted whenever a setting
+   * changes its value.
+   *
+   * Since: 3.94
+   */
   signals[SETTING_CHANGED] =
     g_signal_new (g_intern_static_string ("setting-changed"),
                  G_OBJECT_CLASS_TYPE (object_class),