我想从.wmv文件中提取第一个时间码。目前我正在使用这段代码:
var wmp = new WindowsMediaPlayer();
wmp.newMedia(filename);
WMPLib.IWMPControls3 controls = (WMPLib.IWMPControls3)wmp.controls;
Thread.Sleep(5000);
Console.WriteLine(controls.currentPosition);
Console.WriteLine(controls.currentPositionTimecode);
输出始终为0且00:00:00.00我不知道我做错了什么。
答案 0 :(得分:0)
最后我发现了如何做到这一点:
using WMPLib;
public partial class MainWindow : Window
{
private string _Timecode;
WindowsMediaPlayerClass _Wmp = new WindowsMediaPlayerClass{volume = 0};
public MainWindow()
{
InitializeComponent();
_Wmp.MediaChange += WmpOnMediaChange;
}
private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
MessageBox.Show(_Timecode);
}
private void FrameworkElement_OnLoaded(object sender, RoutedEventArgs e)
{
const string filename = @"C:\Users\Public\Videos\Toto.wmv";
_Wmp.URL = filename;
}
private void WmpOnMediaChange(object item)
{
_Wmp.MediaChange -= WmpOnMediaChange;
_Wmp.controls.pause();
_Wmp.controls.currentPosition = 0 ;
_Timecode = ((IWMPControls3) _Wmp.controls).currentPositionTimecode;
_Wmp.close();
_Wmp = null;
}
}