indicates a mouse wheel event . concode_field_sep DirectPosition2D geoCoords concode_elem_sep int wheelAmount concode_elem_sep MouseEvent event concode_elem_sep boolean isWheelEvent concode_field_sep Point getPoint concode_elem_sep int getStateMask concode_elem_sep DirectPosition2D getMapPosition concode_elem_sep int getMouseButton concode_elem_sep int getWheelAmount
boolean function ( ) { return isWheelEvent ; }