WindowsRuntimeBufferExtensions.GetWindowsRuntimeBuffer Method (MemoryStream, Int32, Int32)

Article
11/23/2015

For apps that target Windows Phone OS 7.0 and 7.1, do not use any members of this type in your app. If you do, your code will throw a MethodAccessException. This type is security-critical, which restricts it to internal use by the .NET Framework for Windows Phone class library.

[SECURITY CRITICAL]

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Returns a Windows.Storage.Streams.IBuffer interface that represents a region within the memory that the specified memory stream represents.

This API is not CLS-compliant.

Namespace: System.Runtime.InteropServices.WindowsRuntime
Assembly: System.Runtime.WindowsRuntime (in System.Runtime.WindowsRuntime.dll)

Syntax

<CLSCompliantAttribute(False)> _
<ExtensionAttribute> _
Public Shared Function GetWindowsRuntimeBuffer ( _
    underlyingStream As MemoryStream, _
    positionInStream As Integer, _
    length As Integer _
) As IBuffer

[CLSCompliantAttribute(false)]
public static IBuffer GetWindowsRuntimeBuffer(
    this MemoryStream underlyingStream,
    int positionInStream,
    int length
)

Parameters

underlyingStream
Type: System.IO..::.MemoryStream
The stream that shares memory with the IBuffer.

positionInStream
Type: System..::.Int32
The position of the shared memory region in underlyingStream.

length
Type: System..::.Int32
The maximum size of the shared memory region. If the number of bytes in underlyingStream, starting at positionInStream, is less than length, the IBuffer that is returned represents only the available bytes.

Return Value

Type: Windows.Storage.Streams..::.IBuffer
A Windows.Storage.Streams.IBuffer interface that is backed by a region within the memory that backs the specified memory stream.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type MemoryStream. When you use instance method syntax to call this method, omit the first parameter.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0