lyfz_repos/铂金版源码/Biff8/COM/IStream.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace Biff8Excel.COM
{
    [ComImport, Guid("0000000c-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IStreamRef
    {
        void Read([Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] byte[] pv, int cb, ref IntPtr pcbRead);

        void Write([MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] byte[] pv, int cb, ref IntPtr pcbWritten);

        void Seek(long dlibMove, int dwOrigin, ref IntPtr plibNewPosition);

        void SetSize(long libNewSize);

        void CopyTo(IStreamRef pstm, long cb, IntPtr pcbRead, IntPtr pcbWritten);

        void Commit(int grfCommitFlags);

        void Revert();

        void LockRegion(long libOffset, long cb, int dwLockType);

        void UnlockRegion(long libOffset, long cb, int dwLockType);

        void Stat(out STATSTG pstatstg, int grfStatFlag);

        void Clone(out IStreamRef ppstm);
    }
}