videoplayer.loopPointReached C#使用示例
时间: 2024-10-07 10:08:38 浏览: 10
在C#中,`VideoPlayer`通常是一个模拟视频播放器的行为或控件,并可能有一个事件或属性用于检测循环点(loop point reached),即视频播放结束时。下面是一个简单的例子,展示如何使用`loopPointReached`事件:
```csharp
using System;
using System.Media;
public class VideoPlayer
{
private bool isLooping = false;
public event EventHandler LoopPointReachedEvent;
// 假设这个类有一个播放方法
public void Play(string filePath)
{
MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.Open(new Uri(filePath));
if (isLooping)
{
mediaPlayer.repeatMode = RepeatMode.Loop;
}
mediaPlayer.Play();
// 当视频播放完毕(loop point reached)时触发事件
mediaPlayerEOF += MediaPlayer_EOF;
}
private void MediaPlayer_EOF(object sender, EventArgs e)
{
LoopPointReachedEvent?.Invoke(this, EventArgs.Empty);
}
// 设置是否循环播放
public void SetLoop(bool loop)
{
isLooping = loop;
if (isLooping && mediaPlayer != null)
{
mediaPlayer.repeatMode = RepeatMode.Loop;
}
}
}
// 使用示例
public class Program
{
static void Main(string[] args)
{
VideoPlayer player = new VideoPlayer();
player.LoopPointReachedEvent += Player_LoopPointReached;
player.Play("path_to_your_video.mp4");
// 当需要停止循环播放时
player.SetLoop(false);
// 或者在某个条件满足时手动移除事件处理程序
player.LoopPointReachedEvent -= Player_LoopPoint Reached;
}
private static void Player_LoopPointReached(object sender, EventArgs e)
{
Console.WriteLine("Video has completed its loop.");
}
}
```
在这个示例中,当你创建一个`VideoPlayer`实例并开始播放,如果设置为循环模式(`SetLoop(true)`),当视频播放结束后(`MediaPlayer_EOF`事件触发),就会调用`LoopPointReachedEvent`。你可以自定义`Player_LoopPointReached`方法来处理这个事件。