diff --git a/AppKit/CPEvent.j b/AppKit/CPEvent.j
index a5fe949bd..2d3c3cf49 100644
--- a/AppKit/CPEvent.j
+++ b/AppKit/CPEvent.j
@@ -204,6 +204,8 @@ var _CPEventPeriodicEventPeriod         = 0,
     BOOL                _isARepeat;
     unsigned            _keyCode;
     DOMEvent            _DOMEvent;
+    int                 _data1;
+    int                 _data2;
 
     float               _deltaX;
     float               _deltaY;
@@ -517,6 +519,16 @@ var _CPEventPeriodicEventPeriod         = 0,
     return _DOMEvent;
 }
 
+- (int)data1
+{
+    return _data1;
+}
+
+- (int)data2
+{
+    return _data2;
+}
+
 // Getting Scroll Wheel Event Information
 /*!
     Returns the change in the x-axis for a mouse event.