delphi简单的播放声音

procedureTaboutBox.FormShow(Sender:TObject);
begin
//播放当前目录下的welcome.wav文件
sndplaysound('welcome.wav',snd_async);
end;

procedureTAboutBox.FormClick(Sender:TObject);
begin
//停止播放
sndplaysound('',snd_async);
end;