WMP PlayStateChange不起作用 [英] WMP PlayStateChange dont work

问题描述

你好，我有Windows Media Player，它是为了启动媒体而我想要它结束活动功能，但我无法访问playstatechange。我正在使用

Hello, i have Windows Media Player and it's made to start the media and i want when it end to active functions but i can't acces playstatechange. I'm using

private void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
        {
            MessageBox.Show("Enter");
            if (e.newState == 8) 
            {
                MessageBox.Show("Enter1");
                axWindowsMediaPlayer1.URL = "";
                winmediaplayerstart();
            }
        }

但是当它结束时我没有得到任何消息框，如输入od输入1.我不知道什么问题...我在构建期间没有错误

谢谢你

But When it ended i dont get any message box like enter od Enter 1. I dont know whats problem... I haven't errors during the build
Thank you

推荐答案

检查和工作都是如此，如果它不适合你，那就别的了你正在使用代码导致它无法工作。我已经在VB.NET和C＃中对此进行了测试。

Both checked and working, so if its not working for you, its something else you are doing in code which is causing it not to work. I've tested this in VB.NET and C#.

'My media player component is called eMediaPlayer.
Private Sub eMediaPlayer_PlayStateChange(ByVal sender As Object, ByVal e As AxWMPLib._WMPOCXEvents_PlayStateChangeEvent) Handles eMediaPlayer.PlayStateChange
        If eMediaPlayer.playState = WMPLib.WMPPlayState.wmppsMediaEnded Then
            'Call PlayNow
            Call PlayNow(Play:=True)

        End If
    End Sub

    ' Add a function to play if the media player has stopped.
    Private Sub PlayNow(ByVal Play As Boolean)
        'Put your code here.
        If Play = False Then
            MsgBox("Play set to stop.")
            Exit Sub

        ElseIf Play = True Then
            'Code to play a file goes here.
            eMediaPlayer.openPlayer("Filename here")

        End If
    End Sub  

C＃版本：

C# Version:

//My media player component is called eMediaPlayer.


private void eMediaPlayer_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
    if (eMediaPlayer.playState == WMPLib.WMPPlayState.wmppsMediaEnded) {
        //Call PlayNow
        PlayNow(Play: true);

    }
}

// Add a function to play if the media player has stopped.
private void PlayNow(bool Play)
{
    //Put your code here.
    if (Play == false) {
        Interaction.MsgBox("Play set to stop.");
        return;

    } else if (Play == true) {
        //Code to play a file goes here.
        eMediaPlayer.openPlayer("Filename here");

    }
}

希望它有所帮助。

祝你好运。

Hope it helps.
Good luck.

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