MCI_STEP_PARMS

This structure contains fields for the MCI_STEP message.

typedef struct _MCI_STEP_PARMS {
  HWND      hwndCallback;  /*  Window handle. */
  ULONG     ulStep;        /*  Step increment. */
} MCI_STEP_PARMS;

typedef   MCI _ STEP _ PARMS   * PMCI _ STEP _ PARMS ;