本文介绍了如何重复播放歌曲?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个名为MediaPlayer1的TMediaPlayer,然后打开一个文件(一首歌曲)并播放它。
现在我的问题是我需要重复播放歌曲,直到程序停止为止。



这个想法是激活表格,然后重复指定的歌曲,直到

  MediaPlayer1.Filename:='文件名'; 

然后将其打开

  MediaPlayer1.Open; 

然后播放它

  MediaPlayer1.Play; 

所以现在这首歌正在播放,但是当它结束时我希望它再次播放(重复),然后



我尝试了大卫·赫弗南(David Heffernan)所说的内容,但没有用,我认为我做错了什么,可以请人纠正我。

 单位Unit1; 

界面

使用
Windows,消息,SysUtils,变体,类,图形,控件,窗体,
对话框,MPlayer,StdCtrls;

type
TForm1 = class(TForm)
MediaPlayer1:TMediaPlayer;
标签1:TLabel;
过程FormActivate(Sender:TObject);
过程MediaPlayer1Notify(Sender:TObject);
私人
{私人声明}
公共
{公开声明}
结尾;

var
Form1:TForm1;

实现

{$ R * .dfm}

过程TForm1.FormActivate(Sender:TObject);
开始
mediaplayer1.FileName:='E:\it project\mario.mid';
mediaplayer1.Open;
mediaplayer1.AutoRewind:= true;
mediaplayer1.Play;
mediaplayer1.Notify:= true;
结尾;

过程TForm1.MediaPlayer1Notify(Sender:TObject);
如果MediaPlayer1.NotifyValue = nvSuccessful则开始
,然后开始
MediaPlayer1.Play;
MediaPlayer1.Notify:= True;
结尾;
结尾;
结尾。


解决方案

您必须自己组织自动重复。 / p>

为媒体播放器创建 OnNotify 事件。

 过程TForm1.MediaPlayer1Notify(Sender:TObject);会在歌曲完成时触发。 
如果MediaPlayer1.NotifyValue = nvSuccessful开始
,然后开始
//重新播放歌曲
MediaPlayer1.Play;
MediaPlayer1.Notify:= True; //确保当歌曲结束
时我们得到通知;
结尾;

开始播放歌曲的代码应如下所示:

  MediaPlayer1.AutoRewind:= True; //出于明显原因
MediaPlayer1.Play;
MediaPlayer1.Notify:= True; //确保当歌曲结束时我们得到通知


I have a TMediaPlayer called MediaPlayer1 I then open a file(a song) I play it.now my problem is that I need the song to repeat until the program stops.

The idea is that the form activates and then repeats the specified song until the form is closed.

MediaPlayer1.Filename := 'filename';

Then it opens it

MediaPlayer1.Open;

Then it plays it

MediaPlayer1.Play;

So now the song is playing but when it ends I want it to play again(repeat) and then again until the form is closed.

I tried what David Heffernan said but it does not work, I think I did something wrong can someone pleas correct me.

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, MPlayer, StdCtrls;

type
  TForm1 = class(TForm)
    MediaPlayer1: TMediaPlayer;
    Label1: TLabel;
    procedure FormActivate(Sender: TObject);
    procedure MediaPlayer1Notify(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormActivate(Sender: TObject);
begin
 mediaplayer1.FileName:='E:\it project\mario.mid';
 mediaplayer1.Open;
 mediaplayer1.AutoRewind:=true;
 mediaplayer1.Play;
 mediaplayer1.Notify:=true;
end;

procedure TForm1.MediaPlayer1Notify(Sender: TObject);
begin
  if MediaPlayer1.NotifyValue=nvSuccessful then begin
    MediaPlayer1.Play;
    MediaPlayer1.Notify := True;
  end;
end;
end.
解决方案

You have to organise the auto repeat for yourself.

Create an OnNotify event for the media player. This fires when the song completes.

procedure TForm1.MediaPlayer1Notify(Sender: TObject);
begin
  if MediaPlayer1.NotifyValue=nvSuccessful then begin
    //restart the song
    MediaPlayer1.Play;
    MediaPlayer1.Notify := True;//ensures we are notified when song completes
  end;
end;

The code that starts the song needs to look like this:

MediaPlayer1.AutoRewind := True;//for obvious reasons
MediaPlayer1.Play;
MediaPlayer1.Notify := True;//ensures we are notified when song completes

这篇关于如何重复播放歌曲?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-02 06:29