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WindowsRuntimeStreamExtensions::AsOutputStream Method

.NET Framework 4.5

Converts a managed stream in the .NET for Windows Store apps to an output stream in the Windows Runtime.

This API is not CLS-compliant. 

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

[ExtensionAttribute]
[CLSCompliantAttribute(false)]
public:
static IOutputStream^ AsOutputStream(
	Stream^ stream
)

Parameters

stream
Type: System.IO::Stream

The stream to convert.

Return Value

Type: IOutputStream
A Windows Runtime IOutputStream object that represents the converted stream.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Stream. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

ExceptionCondition
ArgumentNullException

stream is nullptr.

NotSupportedException

The stream does not support writing.

The following example shows how to use the AsInputStream and AsOutputStream methods to convert a managed stream to and from a stream in the Windows Runtime.

No code example is currently available or this language may not be supported.

Here's the XAML code that is associated with the previous example.

<Page
    x:Class="ExampleApplication.BlankPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:ExampleApplication"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <StackPanel Background="{StaticResource ApplicationPageBackgroundBrush}" VerticalAlignment="Center" HorizontalAlignment="Center">
        <Button Name="CreateButton" Content="Write and read with stream" Click="CreateButton_Click"></Button>
        <TextBlock Name="Results"></TextBlock>
    </StackPanel>
</Page>

.NET Framework

Supported in: 4.5

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone Silverlight 8

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012

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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