windowBase->FocusChangedSignal().Connect( this, &EventHandler::OnFocusChanged );
windowBase->RotationSignal().Connect( this, &EventHandler::SendRotationPrepareEvent );
windowBase->TouchEventSignal().Connect( this, &EventHandler::OnTouchEvent );
windowBase->FocusChangedSignal().Connect( this, &EventHandler::OnFocusChanged );
windowBase->RotationSignal().Connect( this, &EventHandler::SendRotationPrepareEvent );
windowBase->TouchEventSignal().Connect( this, &EventHandler::OnTouchEvent );