SPBCDATA

typedef struct _SPBCDATA {
  ULONG       cb;                // length of control data in bytes
  ULONG       ulTextLimit;       // entryfield text limit
  LONG        lLowerLimit;       // spin lower limit (numeric only)
  LONG        lUpperLimit;       // spin upper limit (numeric only)
  ULONG       idMasterSpb;       // id of the servant's master spinbutton
  PVOID       pHWXCtlData;       // reserved
} SPBCDATA, *PSPBCDATA;