Structure that contains information about the application page being selected.

typedef struct _PAGESELECTNOTIFY {
  HWND      hwndBook;     /*  Notebook window handle. */
  ULONG     ulPageIdCur;  /*  Current top page identifier. */
  ULONG     ulPageIdNew;  /*  New top page identifier. */
} PAGESELECTNOTIFY;

typedef   PAGESELECTNOTIFY   * PPAGESELECTNOTIFY ;