c#中如何将试听歌曲添加到播放列表的代码

c#中如何将试听歌曲添加到播放列表的代码 [音乐网络资源]

悬赏点数 10 投票中。

湖南过客 2009-1-2 下午07:09:04 222.240.227.* an...@163.com 举报

回答

softime

2009-1-2 下午11:18:08 211.138.173.* 举报

参考

{
class Media
{
[DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]
private static extern int mciSendString(
string lpstrCommand,
string lpstrReturnString,
int uReturnLength,
int hwndCallback
);

[DllImport("winmm.dll", EntryPoint = "mciGetDeviceID", CharSet = CharSet.Auto)]
private static extern int mciGetDeviceID(string lpstrName);
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
public static extern int GetShortPathName(
string lpszLongPath,
string shortFile,
int cchBuffer
);

public enum PlayTypeName : byte
{
File = 1,
CDAudio = 2,
VCD = 3,
RealPlay = 4
}

public enum AudioSource : byte
{
H = 0,
L = 1,
R = 2
}

public enum Playstate : byte
{
Stopped = 1,
Playing = 2,
Pause = 3
}

public enum PlayStyle : byte
{
顺序 = 1,
随机 = 2,
循环 = 3
}

public PlayTypeName PlayType;

public int Temp; //零时变量工程中将使用

public String SongName; //储存当前真正播放的歌曲名称

public string PreSongName;

public string NextSongName;

public int SongIndex; //储存当前播放的歌曲列表的位置

public int totalSong;

public PlayStyle PlayerStyle;//播放模式

public int Valume;//音量大小

public AudioSource audiosource;

public bool IsSlowly;//播放速度

/// <summary>
/// 获取DeviceID
/// </summary>
/// <returns>返回设备类型</returns>

public int GetDeviceID()
{
return mciGetDeviceID("NOWMUSIC");
}

/// <summary>
/// 根据文件名，确定设备
/// </summary>
/// <param name="ff">文件名</param>
/// <returns></returns>

public string GetDriverID(string ff)
{
string result = "";
ff = ff.ToUpper().Trim();
switch (ff.Substring(ff.Length - 3))
{
case "MID":
result = "Sequencer";
break;

case "RMI":
result = "Sequencer";
break;

case "IDI":
result = "Sequencer";
break;

case "WAV":
result = "Waveaudio";
break;

case "ASX":
result = "MPEGVideo2";
break;

case "IVF":
result = "MPEGVideo2";
break;

case "LSF":
result = "MPEGVideo2";
break;

case "LSX":
result = "MPEGVideo2";
break;

case "P2V":
result = "MPEGVideo2";
break;

case "WAX":
result = "MPEGVideo2";
break;

case "WVX":
result = "MPEGVideo2";
break;

case ".WM":
result = "MPEGVideo2";
break;

case "WMX":
result = "MPEGVideo2";
break;

case "WMP":
result = "MPEGVideo2";
break;

case ".RM":
result = "RealPlay";
break;

case "RAM":
result = "RealPlay";
break;

case ".RA":
result = "RealPlay";
break;

case "MVB":
result = "RealPlay";
break;

default:
result = "MPEGVideo";
break;
}
return result;
}

/// <summary>
/// 打开MCI设备，
/// </summary>
/// <param name="FileName">要打开的文件名</param>
/// <param name="Handle">mci设备的窗口句柄</param>
/// <returns>传值代表成功与否</returns>

public bool OpenMusic(string FileName, IntPtr Handle)
{
bool result = false;
string MciCommand;
int RefInt;

CloseMusic();

ShortPathName = "";
ShortPathName = ShortPathName.PadLeft(260, Convert.ToChar(" "));
RefInt = GetShortPathName(FileName, ShortPathName, ShortPathName.Length);
ShortPathName = GetCurrPath(ShortPathName);
string DriverID = GetDriverID(ShortPathName);
if (DriverID == "RealPlay")
return false;

MciCommand = string.Format("open {0} type {1} alias NOWMUSIC ", ShortPathName, DriverID);//"open " & RefShortName & " type " & DriverID & " alias NOWMUSIC"

if (DriverID == "AVIVideo" || DriverID == "MPEGVideo" || DriverID == "MPEGVideo2")
{
if (Handle != IntPtr.Zero)
{
MciCommand = MciCommand + string.Format(" parent {0} style child ", Handle);// " parent " & Hwnd & " style child"
}
else
{
MciCommand = MciCommand + " style overlapped ";
}
}

TemStr = "";
TemStr = TemStr.PadLeft(128, Convert.ToChar(" "));
RefInt = mciSendString(MciCommand, null, 0, 0);
mciSendString("set NOWMUSIC time format milliseconds", null, 0, 0);

if (RefInt == 0)
{
result = true;
SongName = Path.GetFileNameWithoutExtension(FileName);
}
return result;
}

/// <summary>
/// 播放音乐
/// </summary>
/// <returns></returns>
public bool PlayMusic()
{
bool result = false;
int RefInt = mciSendString("play NOWMUSIC", null, 0, 0);
if (RefInt == 0)
{
result = true;
SetValume(Valume);//当前音量大小
//检测播放速度
if (IsSlowly)
SetSpeed(800);
else
SetSpeed(1200);
//检测声道
switch ((int)audiosource)
{
case 0:
SetAudioSource(AudioSource.H);
break;

case 1:
SetAudioSource(AudioSource.L);
break;

case 2:
SetAudioSource(AudioSource.R);
break;
}
}
return result;
}

/// <summary>
/// 设置声音大小
/// </summary>
/// <param name="Valume">音量大小</param>
/// <returns></returns>
public bool SetValume(int Valume)
{
bool result = false;
string MciCommand = string.Format("setaudio NOWMUSIC volume to {0}", Valume);
int RefInt = mciSendString(MciCommand, null, 0, 0);
if (RefInt == 0)
{
result = true;
}

return result;
}

/// <summary>
/// 设置播放速度
/// </summary>
/// <param name="Speed"></param>
/// <returns></returns>
public bool SetSpeed(int Speed)
{

bool result = false;
string MciCommand = string.Format("set NOWMUSIC speed to {0}", Speed);
int RefInt = mciSendString(MciCommand, null, 0, 0);
if (RefInt == 0)
result = true;
return result;
}

/// <summary>
/// 设置声道
/// </summary>
/// <param name="audioSource"></param>
/// <returns></returns>

public bool SetAudioSource(AudioSource audioSource)
{
bool result = false;
string strSource = "";
switch ((int)audioSource)
{
case 1: strSource = "left"; break;

case 2: strSource = "right"; break;

case 0: strSource = "stereo"; break;
}

int RefInt = mciSendString("setaudio NOWMUSIC source to " + strSource, null, 0, 0);
if (RefInt == 0)
result = true;
return result;
}

/// <summary>
/// 设置静音 True为静音，FALSE为取消静音
/// </summary>
/// <param name="AudioOff"></param>
/// <returns></returns>
public bool SetAudioOnOff(bool AudioOff)
{

bool resut = false;

string OnOff;

if (AudioOff)

OnOff = "off";

else

OnOff = "on";

int RefInt = mciSendString("setaudio NOWMUSIC " + OnOff, null, 0, 0);

if (RefInt == 0)

resut = true;

return resut;

}

/// <summary>

/// 关闭媒体

/// </summary>

/// <returns></returns>

public bool CloseMusic()
{

int RefInt = mciSendString("close NOWMUSIC", null, 0, 0);

if (RefInt == 0)

return true;

return false;

}

/// <summary>

/// 暂停播放

/// </summary>

/// <returns></returns>

public bool PauseMusic()
{

int RefInt = mciSendString("pause NOWMUSIC", null, 0, 0);

if (RefInt == 0)

return true;

return false;

}

/// <summary>

/// 获得当前媒体的状态是不是在播放

/// </summary>

/// <returns></returns>

public Playstate IsPlaying()
{

Playstate isPlaying = Playstate.Stopped;
try
{

durLength = "";

durLength = durLength.PadLeft(128, Convert.ToChar(" "));

int RefInt = mciSendString("status NOWMUSIC mode", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if (durLength.Substring(0, 7) == "playing" || durLength.Substring(0, 2) == "播放")

isPlaying = Playstate.Playing;

else if (durLength.Substring(0, 7) == "stopped" || durLength.Substring(0, 2) == "停止")

isPlaying = Playstate.Stopped;

else isPlaying = Playstate.Pause;
}
catch
{
}

return isPlaying;

}

/// <summary>

/// 获取当前播放进度毫秒

/// </summary>

/// <returns></returns>

public int GetMusicPos()
{

durLength = "";

durLength = durLength.PadLeft(128, Convert.ToChar(" "));

mciSendString("status NOWMUSIC position", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if (string.IsNullOrEmpty(durLength))

return 0;

else

return (int)(Convert.ToDouble(durLength));

}

/// <summary>

/// 获取当前播放进度格式 00：00:00

/// </summary>

/// <returns></returns>

public string GetMusicPosString()
{

durLength = "";

durLength = durLength.PadLeft(128, Convert.ToChar(" "));

mciSendString("status NOWMUSIC position", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if (string.IsNullOrEmpty(durLength))

return "00:00:00";

else
{

int s = Convert.ToInt32(durLength) / 1000;

int h = s / 3600;

int m = (s - (h * 3600)) / 60;

s = s - (h * 3600 + m * 60);

return string.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);

}

}

/// <summary>

/// 获取媒体的长度

/// </summary>

/// <returns></returns>

public int GetMusicLength()
{

durLength = "";

durLength = durLength.PadLeft(128, Convert.ToChar(" "));

mciSendString("status NOWMUSIC length", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if (string.IsNullOrEmpty(durLength))

return 0;

else

return Convert.ToInt32(durLength);

}

/// <summary>

/// 获取媒体的长度 00:00:00

/// </summary>

/// <returns></returns>

public string GetMusicLengthString()
{

durLength = "";

durLength = durLength.PadLeft(128, Convert.ToChar(" "));

mciSendString("status NOWMUSIC length", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if (string.IsNullOrEmpty(durLength))

return "00:00:00";

else
{

int s = Convert.ToInt32(durLength) / 1000;

int h = s / 3600;

int m = (s - (h * 3600)) / 60;

s = s - (h * 3600 + m * 60);

return string.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);

}

}

public bool SetMusicPos(int Position)
{

string MciCommand = string.Format("seek NOWMUSIC to {0}", Position);

int RefInt = mciSendString(MciCommand, null, 0, 0);

if (RefInt == 0)

return true;

else

return false;

}

private string GetCurrPath(string name)
{

if (name.Length < 1) return "";

name = name.Trim();

name = name.Substring(0, name.Length - 1);

return name;

}

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]

private string ShortPathName = "";

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]

private string durLength = "";

[MarshalAs(UnmanagedType.LPTStr, SizeConst = 128)]

private string TemStr = "";

}

}

如果在调用中遇到麻烦请参考我另外一篇文章C#中播放音乐<调用代码>

http://blog.163.com/andy_ghg/blog/static/23203426200892345743256/