Function JetGetIndexInfoW 

pub unsafe fn JetGetIndexInfoW(
    sesid: JET_SESID,
    dbid: u32,
    sztablename: *const u16,
    szindexname: Option<*const u16>,
    pvresult: *mut c_void,
    cbresult: u32,
    infolevel: u32,
) -> i32