enum class XClosedCaptionFontStyle  : uint32_t  
{  
    Default = 0,  
    MonospacedWithSerifs = 1,  
    ProportionalWithSerifs = 2,  
    MonospacedWithoutSerifs = 3,  
    ProportionalWithoutSerifs = 4,  
    Casual = 5,  
    Cursive = 6,  
    SmallCapitals = 7  
}