diff -r ecbabf52600f -r bd83ceabce89 fep/aknfep/inc/AknFepUiManagerChinese.h
--- a/fep/aknfep/inc/AknFepUiManagerChinese.h	Wed Sep 01 12:23:33 2010 +0100
+++ b/fep/aknfep/inc/AknFepUiManagerChinese.h	Tue Sep 14 21:59:06 2010 +0300
@@ -275,6 +275,16 @@
      */
     void ConstructL(TLanguage aLanguage);
 
+	/**
+	* Tell whether this key mapped valid zhuyin, pinyin, or cangjie symbol
+	*/
+    TBool IsValidChineseInputSymbol(TInt aKey, TPtiEngineInputMode aMode) const;
+	
+	/**
+	* Tell whether this key mapped valid chinese tone mark
+	*/
+    TBool IsValidChineseToneMarkKey(TInt aKey, TPtiEngineInputMode aMode) const;
+
 private: // Data
     TAknFepInputStateChineseBase iFepUiState;
     MAknFepUICtrlContainerChinese* iContainerPane;