public virtual extern HRESULT GetStrBufA( [In] int lSrcPos, [In] int lSrcMaxLen, out uint puDestCodePage, [MarshalAs(UnmanagedType.Interface)] out IMLangStringBufA ppDestBuf, out int plDestLen );
public virtual extern HRESULT SetStrBufA( [In] int lDestPos, [In] int lDestLen, [In] uint uCodePage, [In, MarshalAs(UnmanagedType.Interface)] IMLangStringBufA pSrcBuf, out int pcchActual, out int plActualLen );