[gtk+] window: Document GtkWindow::set-focus

[Colin Walters <walters src gnome org>]

commit 93bcca7f023d2767f589e0641fc1923ce880c3d5
Author: Colin Walters <walters verbum org>
Date:   Thu Jan 2 18:40:17 2014 -0500

    window: Document GtkWindow::set-focus
    
    Not sure why this was never documented.

 gtk/gtkwindow.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index ecb5a8b..2c758ec 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -1118,6 +1118,16 @@ gtk_window_class_init (GtkWindowClass *klass)
                                                         GTK_TYPE_APPLICATION,
                                                         GTK_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
+  /**
+   * GtkWindow:set-focus:
+   * @window: the window which received the signal
+   * @widget: the newly focused widget (or %NULL for no focus)
+   *
+   * This signal is emitted whenever the currently focused widget in
+   * this window changes.
+   *
+   * Since: 2.24
+   */
   window_signals[SET_FOCUS] =
     g_signal_new (I_("set-focus"),
                   G_TYPE_FROM_CLASS (gobject_class),