[gtk+] Add a note about tooltip limitations

[Matthias Clasen <matthiasc src gnome org>]

commit 24df69b283d7e7f310450449ae5eca95edc396b2
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Sep 11 12:47:32 2009 -0400

    Add a note about tooltip limitations
    
    Apparently Windows only shows the first 64 characters of tooltips
    on statusicons. Bug 594600.

 gtk/gtkstatusicon.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkstatusicon.c b/gtk/gtkstatusicon.c
index 0d6a262..1cdb0c1 100644
--- a/gtk/gtkstatusicon.c
+++ b/gtk/gtkstatusicon.c
@@ -370,6 +370,10 @@ gtk_status_icon_class_init (GtkStatusIconClass *class)
    * the default handler for the #GtkStatusIcon::query-tooltip signal
    * will take care of displaying the tooltip.
    *
+   * Note that some platforms have limitations on the length of tooltips
+   * that they allow on status icons, e.g. Windows only shows the first
+   * 64 characters.
+   *
    * Since: 2.16
    */
   g_object_class_install_property (gobject_class,