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MediaStreamSourceSwitchStreamsRequest class

Applies to Windows and Windows Phone

Represents an object to be used by the MediaStreamSource.SwitchStreamsRequest event to provide information to the application.

Syntax


public sealed class MediaStreamSourceSwitchStreamsRequest

Attributes

[DualApiPartition()]
[MarshalingBehavior(Agile)]
[Threading(Both)]
[Version(0x06030000)]

Members

The MediaStreamSourceSwitchStreamsRequest class has these types of members:

Methods

The MediaStreamSourceSwitchStreamsRequest class has these methods. With C#, Visual Basic, and C++, it also inherits methods from the Object class.

MethodDescription
GetDeferral Defers completing the MediaStreamSource.SwitchStreamsRequested event.

 

Properties

The MediaStreamSourceSwitchStreamsRequest class has these properties.

PropertyAccess typeDescription

NewStreamDescriptor

Read-onlyGets the stream descriptor for the stream that is now selected by the MediaStreamSource.

OldStreamDescriptor

Read-onlyGets the stream descriptor for the stream which is no longer selected by the MediaStreamSource.

 

Remarks

You can use a deferral when you want to make an asynchronous call in response to the MediaStreamSource.SwitchStreamsRequested event. For example, if you need to establish a HTTP connection or open a file for reading. The MediaStreamSource will then wait for you to mark the deferral as complete before it begins raising the SampleRequested event.

To create a deferral, call the GetDeferral method to instruct the MediaStreamSource to wait for your asynchronous call to complete. When you are ready to start receiving SampleRequested events, call the Complete method to end the deferral.

See the MediaStreamSource Sample for an example of using Media Stream Source in a Windows Store app.

Requirements

Minimum supported client

Windows 8.1 [Windows Store apps, desktop apps]

Minimum supported server

Windows Server 2012 R2 [Windows Store apps, desktop apps]

Minimum supported phone

Windows Phone 8.1 [Windows Phone Silverlight 8.1 and Windows Runtime apps]

Namespace

Windows.Media.Core
Windows::Media::Core [C++]

Metadata

Windows.winmd

See also

Object
MediaStreamSource Sample

 

 

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