程序示例（C#智能设备应用程序）：
必须添加对wmp.dll的引用（项目->添加引用->windows/system32/wmp.dll）。
源文件：
CMediaControl.cs：定义了控制媒体播放的类CMediaControl。
using System.Collections.Generic;
using System;
using System.Windows.Forms;
public class CMediaControl
{
private WMPLib.WindowsMediaPlayer player;
private String curFileName; //Current media file name.
private bool isPaused; //Is current state pause?
private double curPos; //Current time position, use to restore play from pause status.
public CMediaControl()
{
player = new WMPLib.WindowsMediaPlayer();
player.PlayStateChange += new WMPLib._WMPOCXEvents_PlayStateChangeEventHandler(Player_PlayStateChange);
player.MediaError += new WMPLib._WMPOCXEvents_MediaErrorEventHandler(Player_MediaError);
curFileName = "";
isPaused = false;
curPos = 0.0;
}
private void Player_PlayStateChange(int NewState)
{
if(WMPLib.WMPPlayState.wmppsPaused == (WMPLib.WMPPlayState)NewState)
{
isPaused = true;
}
else if(WMPLib.WMPPlayState.wmppsPlaying == (WMPLib.WMPPlayState)NewState)
{
if(isPaused)
{
isPaused = false;
player.controls.currentPosition += curPos;
curPos = 0;
}
}
//else if(WMPLib.WMPPlayState.wmppsStopped == (WMPLib.WMPPlayState)NewState)
//{
// isPaused = false;
//}
}
private void Player_MediaError(object pMediaObject)
{
MessageBox.Show("Cannot play media file.");
}
public int OpenMediaFile(String fileName)
{
int ret = 0;
//Validate fileName
//Filename legal
curFileName = fileName;
player.URL = curFileName;
return ret;
}
public int SetVolumn(int vol)
{
int ret = 0;
//Validate vol
if((vol < 0) || (vol >100))
{
//Volumn is highest or lowest.
return ret;
}
//vol legal
player.settings.volume = vol;
return ret;
}
public int GetVolumn()
{
int ret = 0;
ret = player.settings.volume;
return ret;
}
public int MediaPlay()
{
int ret = 0;
player.controls.play();
return ret;
}
public int MediaPause()
{
int ret = 0;
player.controls.pause();
curPos = player.controls.currentPosition;
return ret;
}
public int MediaStop()
{
int ret = 0;
player.controls.stop();
return ret;
}
public double MediaGetPosition()
{
double ret = 0;
if(WMPLib.WMPPlayState.wmppsPlaying != player.playState)
{
return ret;
}
double curPos = player.controls.currentPosition;
double totalLen = player.currentMedia.duration;
ret = (curPos / totalLen) * 100;
return ret;
}
public string MediaGetInfo()
{
string mediaInfo = "";
//mediaInfo += player.currentMedia.name;
//mediaInfo += "@";
mediaInfo += "Title: " + player.currentMedia.getItemInfo("Title");
mediaInfo += "@";
mediaInfo += "Author: " + player.currentMedia.getItemInfo("Author");
mediaInfo += "@";
mediaInfo += "Description: " + player.currentMedia.getItemInfo("Description");
mediaInfo += "@";
mediaInfo += "Duration: " + player.currentMedia.getItemInfo("Duration");
mediaInfo += "@";
mediaInfo += "FileType: " + player.currentMedia.getItemInfo("FileType");
mediaInfo += "@";
mediaInfo += "FileSize: " + player.currentMedia.getItemInfo("FileSize");
return mediaInfo;
}
public int MediaFastForward(int tick)
{
int ret = 0;
//player.controls.fastForward();
player.controls.currentPosition += tick;
//MessageBox.Show("Don't support this function!");
return ret;
}
public int MediaFastReverse(int tick)
{
int ret = 0;
//player.controls.fastReverse();
player.controls.currentPosition -= tick;
//MessageBox.Show("Don't support this function!");
return ret;
}
}
WMPLib的基本属性及方法见附录，完整的工程下载地址为：
附录
WMPLib的基本属性及方法
URL: (String); 指定媒体位置，本机或网络地址
uiMode:(String); 播放器界面模式，可为Full, Mini, None, Invisible
playState:(integer); 播放状态，1=停止，2=暂停，3=播放，6=正在缓冲，9=正在连接，10=准备就绪
enableContextMenu:(Boolean); 启用/禁用右键菜单
fullScreen:boolean; (是否全屏显示)
[controls] wmp.controls //播放器基本控制
controls.play; 播放
controls.pause; 暂停
controls.stop; 停止
controls.currentPosition:double; 当前进度
controls.currentPositionString:string; 当前进度，字符串格式。如“00:23”
controls.fastForward; 快进
controls.fastReverse; 快退
controls.next; 下一曲
controls.previous; 上一曲
[settings] wmp.settings //播放器基本设置
settings.volume:integer; 音量，0-100
settings.autoStart:Boolean; 是否自动播放
settings.mute:Boolean; 是否静音
settings.playCount:integer; 播放次数
[currentMedia] wmp.currentMedia //当前媒体属性
currentMedia.duration:double; 媒体总长度
currentMedia.durationString:string; 媒体总长度，字符串格式。如“03:24”
currentMedia.getItemInfo(const string); 获取当前媒体信息"Title"=媒体标题，"Author"=艺术 家，"Copyright"=版权信息，"Description"=媒体内容描述，"Duration"=持续时间（秒），"FileSize"=文件大小，"FileType"=文件类型，"sourceURL"=原始地址
currentMedia.setItemInfo(const string); 通过属性名设置媒体信息
currentMedia.name:string; 同 currentMedia.getItemInfo("Title")
[currentPlaylist] wmp.currentPlaylist //当前播放列表属性
currentPlaylist.count:integer; 当前播放列表所包含媒体数
currentPlaylist.Item[integer]; 获取或设置指定项目媒体信息，其子属性同wmp.currentMedia