fix oo bindings

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@437 b9cfdab3-6d41-4d17-bbe4-086880011989

include/MwOO/Widget/ScrollBar.h

@@ -8,6 +8,7 @@ namespace MwOO {
 class ScrollBar : public MwOO::Base {
       public:
 	ScrollBar(const char* widget_name, MwOO::Base* parent, int x, int y, int w, int h);
+	int	    GetVisibleLength(void);
 	void	    SetAreaShown(int value);
 	int	    GetAreaShown(void);
 	void	    SetValue(int value);