AdaptiveMediaSource.DownloadRequested 事件

定义

命名空间:

Windows.Media.Streaming.Adaptive

请求资源下载操作时发生。

// Register
event_token DownloadRequested(TypedEventHandler<AdaptiveMediaSource, AdaptiveMediaSourceDownloadRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
AdaptiveMediaSource::DownloadRequested_revoker DownloadRequested(auto_revoke_t, TypedEventHandler<AdaptiveMediaSource, AdaptiveMediaSourceDownloadRequestedEventArgs const&> const& handler) const;

public event TypedEventHandler<AdaptiveMediaSource,AdaptiveMediaSourceDownloadRequestedEventArgs> DownloadRequested;

function onDownloadRequested(eventArgs) { /* Your code */ }
adaptiveMediaSource.addEventListener("downloadrequested", onDownloadRequested);
adaptiveMediaSource.removeEventListener("downloadrequested", onDownloadRequested);
- or -
adaptiveMediaSource.ondownloadrequested = onDownloadRequested;

Public Custom Event DownloadRequested As TypedEventHandler(Of AdaptiveMediaSource, AdaptiveMediaSourceDownloadRequestedEventArgs) 

事件类型

TypedEventHandler<AdaptiveMediaSource,AdaptiveMediaSourceDownloadRequestedEventArgs>

注解

处理此事件以在操作开始之前修改资源下载操作的参数。