MediaFrameSourceGroup.FindAllAsync 方法

定义

命名空间:

Windows.Media.Capture.Frames

异步检索当前设备上可用媒体帧源组的列表。

public:
 static IAsyncOperation<IVectorView<MediaFrameSourceGroup ^> ^> ^ FindAllAsync();

/// [Windows.Foundation.Metadata.RemoteAsync]
 static IAsyncOperation<IVectorView<MediaFrameSourceGroup>> FindAllAsync();

[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncOperation<IReadOnlyList<MediaFrameSourceGroup>> FindAllAsync();

function findAllAsync()

Public Shared Function FindAllAsync () As IAsyncOperation(Of IReadOnlyList(Of MediaFrameSourceGroup))

返回

IAsyncOperation<IVectorView<MediaFrameSourceGroup>>

IAsyncOperation<IReadOnlyList<MediaFrameSourceGroup>>

异步操作，在完成后返回 MediaFrameSourceGroup 对象列表。

属性

RemoteAsyncAttribute

注解

如果 MediaFrameSourceGroup.FindAllAsync () 返回零组，请在 Package.appxmanifest 文件中请求网络摄像头功能。