MediaStreamSource.Closed 事件

定义

命名空间:

Windows.Media.Core

在 关闭 MediaStreamSource 时发生。

// Register
event_token Closed(TypedEventHandler<MediaStreamSource, MediaStreamSourceClosedEventArgs const&> const& handler) const;

// Revoke with event_token
void Closed(event_token const* cookie) const;

// Revoke with event_revoker
MediaStreamSource::Closed_revoker Closed(auto_revoke_t, TypedEventHandler<MediaStreamSource, MediaStreamSourceClosedEventArgs const&> const& handler) const;

public event TypedEventHandler<MediaStreamSource,MediaStreamSourceClosedEventArgs> Closed;

function onClosed(eventArgs) { /* Your code */ }
mediaStreamSource.addEventListener("closed", onClosed);
mediaStreamSource.removeEventListener("closed", onClosed);
- or -
mediaStreamSource.onclosed = onClosed;

Public Custom Event Closed As TypedEventHandler(Of MediaStreamSource, MediaStreamSourceClosedEventArgs) 

事件类型

TypedEventHandler<MediaStreamSource,MediaStreamSourceClosedEventArgs>

注解

如果 MediaStreamSource 因错误而关闭，MediaStreamSourceClosedRequest 对象上的 Reason 属性（可从 MediaStreamSourceClosedEventArgs 获取）提供有关错误性质的信息。

收到此事件后，应用程序应从 MediaStreamSource 对象中删除其所有事件处理程序，并避免进一步使用此 MediaStreamSource 对象的实例。

应用程序不需要具有此事件的处理程序。

另请参阅

• MediaStreamSourceClosedEventArgs