[gtk+] main: fix a compilation warning

[Cosimo Cecchi <cosimoc src gnome org>]

commit 4b7ec2be8244a1641d71603ef6860eb7c41439b0
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Jan 19 13:51:22 2012 -0500

    main: fix a compilation warning

 gtk/gtkmain.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 99d3ce1..273f145 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -2207,7 +2207,7 @@ gtk_invoke_key_snoopers (GtkWidget *grab_widget,
   GSList *slist;
   gint return_val = FALSE;
 
-  return_val = _gail_util_key_snooper (grab_widget, event);
+  return_val = _gail_util_key_snooper (grab_widget, (GdkEventKey *) event);
 
   slist = key_snoopers;
   while (slist && !return_val)