public static switch_status_t switch_event_unbind_callback(SWIGTYPE_p_f_p_switch_event__void callback)
 {
     switch_status_t ret = (switch_status_t)freeswitchPINVOKE.switch_event_unbind_callback(SWIGTYPE_p_f_p_switch_event__void.getCPtr(callback));
     return ret;
 }

 public static switch_status_t switch_event_bind_removable(string id, switch_event_types_t arg1, string subclass_name, SWIGTYPE_p_f_p_switch_event__void callback, SWIGTYPE_p_void user_data, SWIGTYPE_p_p_switch_event_node node)
 {
     switch_status_t ret = (switch_status_t)freeswitchPINVOKE.switch_event_bind_removable(id, (int)arg1, subclass_name, SWIGTYPE_p_f_p_switch_event__void.getCPtr(callback), SWIGTYPE_p_void.getCPtr(user_data), SWIGTYPE_p_p_switch_event_node.getCPtr(node));
     return ret;
 }

 public static IDisposable Bind(string id, switch_event_types_t event_types, string subclass_name, Action<EventBindingArgs> f, bool dupe)
 {
     switch_event_callback_delegate boundFunc;
     if (dupe)
     {
         boundFunc = (eventObj) =>
         {
             var args = new EventBindingArgs { EventObj = SwitchEventDupe(new switch_event(eventObj,false)) };
             f(args);
         };
     }
     else
     {
         boundFunc = (eventObj) =>
         {
             var args = new EventBindingArgs { EventObj = new switch_event(eventObj, false) };
             f(args);
         };
     }
     var fp = Marshal.GetFunctionPointerForDelegate(boundFunc);
     var swigFp = new SWIGTYPE_p_f_p_switch_event__void(fp, false);
     var res = freeswitch.switch_event_bind(id, event_types, subclass_name, swigFp, null);
     if (res != switch_status_t.SWITCH_STATUS_SUCCESS)
     {
         throw new InvalidOperationException("Call to switch_event_bind failed, result: " + res + ".");
     }
     return new EventBinding(swigFp, boundFunc);
 }

 internal static HandleRef getCPtr(SWIGTYPE_p_f_p_switch_event__void obj)
 {
     return (obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr;
 }

 private EventBinding(SWIGTYPE_p_f_p_switch_event__void function, switch_event_callback_delegate origDelegate)
 {
     this.function = function;
     this.del = origDelegate;
 }