[gtkmm] SearchBar: handle_event(): Take a GdkEventKey instead of GdkEvent.

[Murray Cumming <murrayc src gnome org>]

commit fc3740b590a623e99e6dc308d3057fdc1dcf0c0c
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Oct 7 09:26:42 2013 +0200

    SearchBar: handle_event(): Take a GdkEventKey instead of GdkEvent.
    
    * gtk/src/searchbar.hg: That is what the C docuementation says
      that it should take.
      See bug GTK+ #709544

 gtk/src/searchbar.hg |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtk/src/searchbar.hg b/gtk/src/searchbar.hg
index 4038d15..c341fd1 100644
--- a/gtk/src/searchbar.hg
+++ b/gtk/src/searchbar.hg
@@ -66,7 +66,10 @@ public:
   _WRAP_METHOD(bool get_show_close_button() const, gtk_search_bar_get_show_close_button)
   _WRAP_METHOD(void set_show_close_button(bool visible=true), gtk_search_bar_set_show_close_button)
 
-  _WRAP_METHOD(bool handle_event(GdkEvent* event), gtk_search_bar_handle_event)
+  //TODO: Use Gdk::EventKey, if we ever use Gdk::Event elsewhere in the API:
+//We use GdkEventKey* rather than GdkEvent*. See GTK+ bug https://bugzilla.gnome.org/show_bug.cgi?id=709544
+#m4 _CONVERSION(`GdkEventKey*',`GdkEvent*',`(($2)($3))')
+  _WRAP_METHOD(bool handle_event(GdkEventKey* event), gtk_search_bar_handle_event)
 
 
   _WRAP_PROPERTY("search-mode-enabled", bool)