enumChartEngine

typedef enum
{
  [helpstring("Chart engine, Microsoft OWC third-party")]     chartengine_owc       = 0,
  [helpstring("Chart engine, built-in")]                      chartengine_builtin   = 1,
  [helpstring("Chart engine, built-in and scalable")]         chartengine_scalable  = 2,
  [helpstring("Chart engine, svg vector graphics")]           chartengine_svg       = 3

} enumChartEngine;

used in IXlsWorkbook::ChartEngine property.