MediaFrameReader.FrameArrived 事件

定义

命名空间:

Windows.Media.Capture.Frames

当新帧从与 MediaFrameReader 关联的媒体帧源到达时发生。

// Register
event_token FrameArrived(TypedEventHandler<MediaFrameReader, MediaFrameArrivedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
MediaFrameReader::FrameArrived_revoker FrameArrived(auto_revoke_t, TypedEventHandler<MediaFrameReader, MediaFrameArrivedEventArgs const&> const& handler) const;

public event TypedEventHandler<MediaFrameReader,MediaFrameArrivedEventArgs> FrameArrived;

function onFrameArrived(eventArgs) { /* Your code */ }
mediaFrameReader.addEventListener("framearrived", onFrameArrived);
mediaFrameReader.removeEventListener("framearrived", onFrameArrived);
- or -
mediaFrameReader.onframearrived = onFrameArrived;

Public Custom Event FrameArrived As TypedEventHandler(Of MediaFrameReader, MediaFrameArrivedEventArgs) 

事件类型

TypedEventHandler<MediaFrameReader,MediaFrameArrivedEventArgs>

注解

在 FrameArrived 事件的处理程序中，调用 TryAcquireLatestFrame 获取表示媒体帧源中最新帧的 MediaFrameReference 。