+ virtual void controlAction(WXWidget slf, void* _cmd, void *sender);
+ virtual void mouseEvent(WX_NSEvent event, WXWidget slf, void* _cmd);
+};
+
+// we will have a mouseDown, then in the native
+// implementation of mouseDown the tracking code
+// is calling clickedAction, therefore we wire this
+// to thumbtrack and only after super mouseDown
+// returns we will call the thumbrelease