IStream Interface

Provides the managed definition of the IStream interface, with ISequentialStream functionality.

Namespace:  System.Runtime.InteropServices.ComTypes
Assembly:  mscorlib (in mscorlib.dll)

[GuidAttribute("0000000c-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IStream

The IStream type exposes the following members.

  NameDescription
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsCloneCreates a new stream object with its own seek pointer that references the same bytes as the original stream.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsCommitEnsures that any changes made to a stream object that is open in transacted mode are reflected in the parent storage.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsCopyToCopies a specified number of bytes from the current seek pointer in the stream to the current seek pointer in another stream.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsLockRegionRestricts access to a specified range of bytes in the stream.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsReadReads a specified number of bytes from the stream object into memory starting at the current seek pointer.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsRevertDiscards all changes that have been made to a transacted stream since the last Commit call.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsSeekChanges 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.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsSetSizeChanges the size of the stream object.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsStatRetrieves the STATSTG structure for this stream.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsUnlockRegionRemoves the access restriction on a range of bytes previously restricted with the LockRegion method.
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsWriteWrites a specified number of bytes into the stream object starting at the current seek pointer.
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For more information, see the existing documentation for IStream and ISequentialStream in the the MSDN Library.

The common language runtime throws an exception when a COM method in native code returns an HRESULT. For more information, see How to: Map HRESULTs and Exceptions.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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