ADDITIONALMETRICS data structure.

If the font signature type is ADDITIONALMETRICS, additional information is included in the PANOSE datatype.

typedef struct _ADDITIONALMETRICS {
  ULONG      ulIdentity;  /*  Structure identity code. */
  ULONG      ulSize;      /*  Structure size in bytes. */
  PANOSE     panose;      /*  Quantitative descriptions of font faces. */
} ADDITIONALMETRICS;

typedef   ADDITIONALMETRICS   * PADDITIONALMETRICS ;