--- a/uifw/AvKon/inc/AknPreviewPopUp.h	Tue Feb 02 01:00:49 2010 +0200
+++ b/uifw/AvKon/inc/AknPreviewPopUp.h	Fri Apr 16 15:13:44 2010 +0300
@@ -113,7 +113,14 @@
       	*/
       	void Draw( CWindowGc& aGc, const CCoeControl& aControl,
       	           const TRect& aRect ) const;
-
+  
+        /**
+        * From CCoeControl. Sets this control as visible or invisible.
+        * @param aVisible ETrue to make the control visible, EFalse to make it
+        *        invisible.
+        */
+        void MakeVisible( TBool aVisible );
+        
         /**
         * From CCoeControl. Gets the number of component controls contained by 
         * this control.