+ ImfEventSignalType& EventReceivedSignal();
+
+ /**
+ * @brief Connect to this signal to be notified when the virtual keyboard is shown or hidden.
+ *
+ * @return The signal connect to status changed event.
+ */
+ StatusSignalType& StatusChangedSignal();
+
+ /**
+ * @brief Connect to this signal to be notified when the virtual keyboard is resized.
+ *
+ * @return The signal to connect to resized event.
+ */
+ VoidSignalType& ResizedSignal();
+
+ /**
+ * @brief Connect to this signal to be notified when the virtual keyboard's language is changed.
+ *
+ * @return The signal to connect to language changed event.
+ */
+ VoidSignalType& LanguageChangedSignal();