本例效果图:
![](https://www.cnblogs.com/images/cnblogs_com/del/148408/o_88192.gif)
代码文件:
![](https://www.cnblogs.com/images/cnblogs_com/del/148408/o_88192.gif)
代码文件:
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls; type TForm1 = class(TForm) OpenDialog1: TOpenDialog; Timer1: TTimer; Button1: TButton; Button2: TButton; Button3: TButton; Button4: TButton; procedure FormCreate(Sender: TObject); procedure FormDestroy(Sender: TObject); procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); procedure Button4Click(Sender: TObject); procedure Timer1Timer(Sender: TObject); end; var Form1: TForm1; implementation {$R *.dfm} uses Bass; var hs: HSTREAM; {流句柄} procedure TForm1.FormCreate(Sender: TObject); begin Timer1.Interval := 200; if HiWord(BASS_GetVersion) <> BASSVERSION then MessageBox(0, '"Bass.dll" 文件版本不合适! ', nil, MB_ICONERROR); if not BASS_Init(-1, 44100, 0, 0, nil) then ShowMessage('初始化错误'); end; {打开} procedure TForm1.Button1Click(Sender: TObject); var Mp3Path: AnsiString; begin BASS_StreamFree(hs); OpenDialog1.Filter := 'Mp3 文件(*.mp3)|*.mp3|Wav 文件(*.wav)|*wav'; if OpenDialog1.Execute then Mp3Path := AnsiString(OpenDialog1.FileName); hs := BASS_StreamCreateFile(False, PAnsiChar(Mp3Path), 0, 0, 0); {想下面这样建立播放流, 直接就是循环播放的} //hs := BASS_StreamCreateFile(False, PAnsiChar(Mp3Path), 0, 0, BASS_SAMPLE_LOOP); if hs < BASS_ERROR_ENDED then Text := '打开失败' end; {播放} procedure TForm1.Button2Click(Sender: TObject); begin BASS_ChannelPlay(hs, False); end; {暂停} procedure TForm1.Button3Click(Sender: TObject); begin BASS_ChannelPause(hs); end; {停止} procedure TForm1.Button4Click(Sender: TObject); begin BASS_ChannelStop(hs); end; {监视播放状态} procedure TForm1.Timer1Timer(Sender: TObject); var str: string; begin if hs = 0 then Exit; {如果播放流没有建立则退出} case BASS_ChannelIsActive(hs) of BASS_ACTIVE_STOPPED: str := '停止状态'; BASS_ACTIVE_PLAYING: str := '正在播放'; BASS_ACTIVE_STALLED: str := '失速状态, 正在等待数据'; BASS_ACTIVE_PAUSED: str := '暂停状态'; end; Text := str; end; procedure TForm1.FormDestroy(Sender: TObject); begin BASS_Free; end; end.窗体文件:
object Form1: TForm1 Left = 222 Top = 114 Caption = 'Form1' ClientHeight = 90 ClientWidth = 254 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -11 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False Position = poDesigned OnCreate = FormCreate OnDestroy = FormDestroy PixelsPerInch = 96 TextHeight = 13 object Button1: TButton Left = 49 Top = 17 Width = 75 Height = 25 Caption = #25171#24320 TabOrder = 0 OnClick = Button1Click end object Button2: TButton Left = 130 Top = 17 Width = 75 Height = 25 Caption = #25773#25918 TabOrder = 1 OnClick = Button2Click end object Button3: TButton Left = 49 Top = 48 Width = 75 Height = 25 Caption = #26242#20572 TabOrder = 2 OnClick = Button3Click end object Button4: TButton Left = 130 Top = 48 Width = 75 Height = 25 Caption = #20572#27490 TabOrder = 3 OnClick = Button4Click end object OpenDialog1: TOpenDialog Left = 216 end object Timer1: TTimer OnTimer = Timer1Timer end end