MediaStreamSourceSwitchStreamsRequest
MediaStreamSourceSwitchStreamsRequest
MediaStreamSourceSwitchStreamsRequest
MediaStreamSourceSwitchStreamsRequest
Class
Definition
Represents an object to be used by the MediaStreamSource.SwitchStreamsRequest event to provide information to the application.
public : sealed class MediaStreamSourceSwitchStreamsRequest : IMediaStreamSourceSwitchStreamsRequestpublic sealed class MediaStreamSourceSwitchStreamsRequest : IMediaStreamSourceSwitchStreamsRequestPublic NotInheritable Class MediaStreamSourceSwitchStreamsRequest Implements IMediaStreamSourceSwitchStreamsRequest// You can use this class in JavaScript.
- Attributes
| Device family |
Windows 10 (introduced v10.0.10240.0)
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| API contract |
Windows.Foundation.UniversalApiContract (introduced v1)
|
Remarks
See the MediaStreamSource Sample for an example of using Media Stream Source in a Windows Store app.
Properties
NewStreamDescriptor NewStreamDescriptor NewStreamDescriptor NewStreamDescriptor
Gets the stream descriptor for the stream that is now selected by the MediaStreamSource.
public : IMediaStreamDescriptor NewStreamDescriptor { get; }public IMediaStreamDescriptor NewStreamDescriptor { get; }Public ReadOnly Property NewStreamDescriptor As IMediaStreamDescriptor// You can use this property in JavaScript.
The selected stream.
OldStreamDescriptor OldStreamDescriptor OldStreamDescriptor OldStreamDescriptor
Gets the stream descriptor for the stream which is no longer selected by the MediaStreamSource.
public : IMediaStreamDescriptor OldStreamDescriptor { get; }public IMediaStreamDescriptor OldStreamDescriptor { get; }Public ReadOnly Property OldStreamDescriptor As IMediaStreamDescriptor// You can use this property in JavaScript.
The previously selected stream.
Methods
GetDeferral() GetDeferral() GetDeferral() GetDeferral()
Defers completing the MediaStreamSource.SwitchStreamsRequested event.
public : MediaStreamSourceSwitchStreamsRequestDeferral GetDeferral()public MediaStreamSourceSwitchStreamsRequestDeferral GetDeferral()Public Function GetDeferral() As MediaStreamSourceSwitchStreamsRequestDeferral// You can use this method in JavaScript.
The deferral.
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.