Function JetAddColumnW
pub unsafe fn JetAddColumnW(
sesid: JET_SESID,
tableid: JET_TABLEID,
szcolumnname: *const u16,
pcolumndef: *const JET_COLUMNDEF,
pvdefault: Option<*const c_void>,
cbdefault: u32,
pcolumnid: Option<*mut u32>,
) -> i32