IStream 接口
此 API 支持 SQL Server 2012 基础结构,但不能通过代码直接使用。
Provides an interface that supports reading and writing data to stream objects.
命名空间: Microsoft.SqlServer.Dts.Runtime.Wrapper
程序集: Microsoft.SqlServer.DTSRuntimeWrap(在 Microsoft.SqlServer.DTSRuntimeWrap.dll 中)
语法
声明
<GuidAttribute("0000000C-0000-0000-C000-000000000046")> _
<InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)> _
Public Interface IStream _
Inherits ISequentialStream
用法
Dim instance As IStream
[GuidAttribute("0000000C-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IStream : ISequentialStream
[GuidAttribute(L"0000000C-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType::InterfaceIsIUnknown)]
public interface class IStream : ISequentialStream
[<GuidAttribute("0000000C-0000-0000-C000-000000000046")>]
[<InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)>]
type IStream =
interface
interface ISequentialStream
end
public interface IStream extends ISequentialStream
IStream 类型公开以下成员。
方法
名称 | 说明 | |
---|---|---|
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Clone | 基础结构。Creates a new stream object with its own seek pointer that references the same bytes as the original stream. |
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Commit | 基础结构。Ensures that any changes made to a stream object that is open in transacted mode are reflected in the parent storage. |
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LockRegion | 基础结构。Restricts access to a specified range of bytes in the stream. |
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RemoteCopyTo | 基础结构。Copies a specified number of bytes from the current seek pointer in the stream to the current seek pointer in another stream. |
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RemoteRead | 基础结构。Reads a specified number of bytes from the stream object into memory starting at the current seek pointer. |
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RemoteSeek | 基础结构。Changes the seek pointer to a new location relative to the beginning of the stream, to the end of the stream, or to the current seek pointer. |
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RemoteWrite | 基础结构。Writes a specified number of bytes into the stream object starting at the current seek pointer. |
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Revert | 基础结构。Discards all changes that have been made to a transacted stream since the last Commit(UInt32) call. |
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SetSize | 基础结构。Sets the size of the stream object. |
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Stat | 基础结构。Retrieves the tagSTATSTG structure for this stream. |
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UnlockRegion | 基础结构。Removes the access restriction on a range of bytes previously restricted with the LockRegion(_ULARGE_INTEGER, _ULARGE_INTEGER, UInt32) method. |
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