From d4566724088eed36d2239e87f6746a5cafb0ad44 Mon Sep 17 00:00:00 2001
From: Amrykid <amrykid@gmail.com>
Date: Thu, 29 Dec 2011 08:23:43 -0600
Subject: [PATCH] Added containsHandler to events.nim

---
 lib/pure/events.nim | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/pure/events.nim b/lib/pure/events.nim
index a3a609b20..6b8d0c0b1 100644
--- a/lib/pure/events.nim
+++ b/lib/pure/events.nim
@@ -57,6 +57,11 @@ proc removeHandler*(handler: var TEventHandler, func: proc(e: TEventArgs)) =
       handler.handlers.del(i)
       break
     
+proc containsHandler*(handler: var TEventHandler, func: proc(e: TEventArgs)): bool =
+  ## Checks if a callback is registered to this event handler.
+  return handler.handlers.contains(func)
+
+
 proc clearHandlers*(handler: var TEventHandler) =
   ## Clears all of the callbacks from the event handler.
   setLen(handler.handlers, 0)