NUI_EXPRESSION_DATA Structure

struct NUI_EXPRESSION_DATA {
    NUI_EXPRESSION_TRACKING_STATE TrackingState;
    NUI_EXPRESSION_CONFIDENCE_LEVEL FacialExpressions[NUI_EXPRESSION_FACIAL_EXPRESSION_COUNT];
    NUI_EXPRESSION_CONFIDENCE_LEVEL Activities[NUI_EXPRESSION_ACTIVITY_COUNT];
    NUI_EXPRESSION_CONFIDENCE_LEVEL EngagementLevels[NUI_EXPRESSION_ENGAGEMENT_LEVEL_COUNT];
    NUI_EXPRESSION_CONFIDENCE_LEVEL Appearance[NUI_EXPRESSION_APPEARANCE_COUNT];
};