if( 0 == strcmp( signalName.c_str(), SIGNAL_PRE_FOCUS_CHANGE ) )
{
manager->PreFocusChangeSignal().Connect( tracker, functor );
}
if( 0 == strcmp( signalName.c_str(), SIGNAL_PRE_FOCUS_CHANGE ) )
{
manager->PreFocusChangeSignal().Connect( tracker, functor );
}