src/UISystem.h
//  Adds val to current, returns false if it exceeds the bounds of the elements list
Adds val to current, returns false if it exceeds the bounds of the elements list
Adds val to current returns false if it exceeds the bounds of the elements list
inline bool             ChangeCurrent           (long val)
        {
            long change = (long)currentItem + val;
            if (change >= elements.size() || change < 0)
                return false;
            currentItem = change;
            return true;
        }
inline bool ChangeCurrent ( long val ) { long change = ( long ) currentItem + val ; if ( change >= elements . size ( ) || change < 0 ) return false ; currentItem = change ; return true ; }
Adds val to current, returns false if it exceeds the bounds of the elements list
Adds val to current returns false if it exceeds the bounds of the elements list