Fix compiling on VS (thx to joshcryer for reporting).

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3328 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IGUIEditBox.h

@@ -39,7 +39,7 @@ namespace gui
 		virtual void setOverrideColor(video::SColor color) = 0;
 
 		//! Gets the override color
-		virtual video::SColor const & getOverrideColor() const;
+		virtual video::SColor const & getOverrideColor() const = 0;
 
 		//! Sets if the text should use the override color or the color in the gui skin.
 		/** \param enable: If set to true, the override color, which can be set