Slider control data structure.

typedef struct _SLDCDATA {
  ULONG      cbSize;              /*  Data length. */
  USHORT     usScale1Increments;  /*  Scale increments. */
  USHORT     usScale1Spacing;     /*  Scale spacing. */
  USHORT     usScale2Increments;  /*  Alternate scale increments. */
  USHORT     usScale2Spacing;     /*  Alternate scale spacing. */
} SLDCDATA;

typedef   SLDCDATA   * PSLDCDATA ;