This structure contains fields for the MCI_INFO message.
typedef struct _MCI_INFO_PARMS {
  HWND      hwndCallback;  /*  Window handle. */
  PSZ       pszReturn;     /*  Return string. */
  ULONG     ulRetSize;     /*  Return string size. */
} MCI_INFO_PARMS;
typedef   MCI _ INFO _ PARMS   * PMCI _ INFO _ PARMS ;