無(wú)為也，則用天下而有余；有為也，則為天下用而不足。

1、簡(jiǎn)介

https://docs.microsoft.com/en-us/windows/win32/wmp/about-the-windows-media-player-sdk

Microsoft Windows Media Player 軟件開(kāi)發(fā)工具包 （SDK） 提供了用于自定義 Windows Media Player 和 Windows Media Player Mobile 以及使用 Windows Media Player ActiveX 控件和 Windows Media Player Mobile ActiveX 控件的信息和工具。

1.1 WMP控件特點(diǎn)

多種技術(shù)都支持嵌入 Windows Media Player 控件，包括：

• Web 瀏覽器中的 HTML。支持 Microsoft Internet Explorer、Firefox 和 Netscape Navigator 7.1 版瀏覽器。
• 使用Microsoft Visual C++ ?開(kāi)發(fā)系統(tǒng)創(chuàng)建的程序。
• 使用Microsoft Visual Basic? 6.0創(chuàng)建的程序。
• 使用 .NET Framework 創(chuàng)建的程序，包括用 Visual Basic 和 C# 編程語(yǔ)言編寫(xiě)的程序。
• 微軟辦公軟件。

1.2 WMP開(kāi)發(fā)接口

Microsoft Windows Media Player 控件是使用 Microsoft Component Object Model （COM） 技術(shù)的標(biāo)準(zhǔn) ActiveX 控件。Windows Media Player 功能被提煉為一組遵循標(biāo)準(zhǔn) COM 準(zhǔn)則的編程接口。您可以使用帶有 Microsoft JScript 或 Microsoft Visual Basic Scripting Edition （VBScript） 的 Player 控件對(duì)象模型，在標(biāo)準(zhǔn) HTML 網(wǎng)頁(yè)上對(duì)這些接口進(jìn)行編程。您還可以使用Microsoft JScript在皮膚中對(duì)它們進(jìn)行編程。如果要?jiǎng)?chuàng)建嵌入控件的自定義程序，可以使用多種語(yǔ)言之一，包括 Visual Basic、C++ 和 C#。

腳本語(yǔ)言的播放器對(duì)象模型：
ActiveX 使用對(duì)象的概念來(lái)包含編程功能。Windows Media Player 使用多個(gè)對(duì)象來(lái)劃分控件提供的功能。根對(duì)象是 Player 對(duì)象，其他對(duì)象通過(guò)特定屬性附加到 Player 對(duì)象。
下圖顯示了 Windows Media Player 11 ActiveX 控件對(duì)象模型如何用于腳本語(yǔ)言。

在C++中，有時(shí)在 .NET 語(yǔ)言中，對(duì)象由 COM 接口表示。在 Windows Media Player 對(duì)象模型中，COM 接口名稱(chēng)與對(duì)象名稱(chēng)相同，但以“IWMP”為前綴。例如，網(wǎng)絡(luò)對(duì)象通過(guò) IWMPNetwork 接口公開(kāi)。

1.3 WMP開(kāi)發(fā)方式

（1）導(dǎo)入ActiveX控件，拖放ActiveX控件方式

• 工具箱添加ActiveX控件，菜單“工具” -> “選擇工具箱項(xiàng)”
• 選擇“COM組件”，在你想要選擇的控件上面打鉤
• 工具箱最下面就多了對(duì)應(yīng)ActiveX控件
• 拖到界面即可使用

（2）動(dòng)態(tài)創(chuàng)建ActiveX控件

• 類(lèi)向?qū)?，快捷鍵 Ctrl + Shitf + X
• 右邊“添加類(lèi)”，“ActiveX中的MFC控件類(lèi)”，生成ActiveX控件類(lèi)
• 在框架或者對(duì)話(huà)框的初始函數(shù)中，調(diào)用類(lèi)的Create函數(shù)

（3）COM調(diào)用方式

• 類(lèi)向?qū)?，快捷鍵 Ctrl + Shitf + X
• 右邊“添加類(lèi)”，“類(lèi)型庫(kù)中的MFC類(lèi)”，生成繼承COleDispatchDriver的類(lèi)
• 在框架或者對(duì)話(huà)框的初始函數(shù)中，調(diào)用類(lèi)的CreateDispatch函數(shù)

1.4 WMP支持格式

本文列出 Microsoft Windows Media Player 12 支持的多媒體文件類(lèi)型。 如果在 Windows 中安裝新的編解碼器，則可能支持其他文件格式。
Windows Media Player 支持的文件類(lèi)型：

• Windows Media 格式（.asf、.wma、.wmv、.wm）
• Windows Media 元文件(.asx、.wax、.wvx、.wmx、wpl)
• Microsoft 數(shù)字視頻記錄 (.dvr-ms)
• Windows Media 下載程序包 (.wmd)
• 影音交叉存取 (.avi)
• 運(yùn)動(dòng)圖像專(zhuān)家組（.mpg、.mpeg、.m1v、.mp2、.mp3、.mpa、.mpe、.m3u）
• 音樂(lè)器材數(shù)字接口（.mid、.midi、.rmi）
• 音頻交換文件格式（.aif、.aifc、.aiff）
• Sun Microsystems 和 NeXT（.au、.snd）
• Audio for Windows (.wav)
• CD 音頻曲目 (.cda)
• Indeo 視頻技術(shù) (.ivf)
• Windows Media Player 外觀（.wmz、.wms）
• QuickTime 影片 (.mov)
• MP4 音頻文件 （.m4a）
• MP4 視頻文件（.mp4、.m4v、.mp4v、.3g2、.3gp2、.3gp、.3gpp）
• Windows 音頻文件（.aac、.adt、.adts）
• MPEG-2 TS 視頻文件 (.m2ts)
• 免費(fèi)無(wú)損音頻編解碼器 （.flac）

2、官網(wǎng)代碼示例

https://docs.microsoft.com/en-us/previous-versions/windows/desktop/api/wmp/nn-wmp-iwmpplayer4

2.1 Using the Windows Media Player Control in a Console Application

#include "atlbase.h"
#include "atlwin.h"
#include "wmp.h"

int _tmain(int argc, _TCHAR* argv[])
{
    CoInitialize(NULL);

    HRESULT hr = S_OK;
    CComBSTR bstrVersionInfo; // Contains the version string.
    CComPtr<IWMPPlayer> spPlayer;  // Smart pointer to IWMPPlayer interface.

    hr = spPlayer.CoCreateInstance( __uuidof(WindowsMediaPlayer), 0, CLSCTX_INPROC_SERVER );

    if(SUCCEEDED(hr))
    {
        hr = spPlayer->get_versionInfo(&bstrVersionInfo);
    }

    if(SUCCEEDED(hr))
    {
        // Show the version in a message box.
        COLE2T pStr(bstrVersionInfo);
        MessageBox( NULL, (LPCSTR)pStr, _T("Windows Media Player Version"), MB_OK );
    }

    // Clean up.
    spPlayer.Release();
    CoUninitialize();

    return 0;
}

2.2 Hosting the Windows Media Player Control in a Windows Application

#include "wmp.h"
#include <atlbase.h>
#include <atlcom.h>
#include <atlhost.h>
#include <atlctl.h>

CAxWindow  m_wndView;  // ActiveX host window class.
CComPtr<IWMPPlayer>  m_spWMPPlayer;  // Smart pointer to IWMPPlayer interface.

AtlAxWinInit();

CComPtr<IAxWinHostWindow>  spHost;
HRESULT  hr;

GetClientRect(&rcClient);
m_wndView.Create(m_hWnd, rcClient, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);

hr = m_wndView.QueryHost(&spHost);

hr = spHost->CreateControl(CComBSTR(_T("{6BF52A52-394A-11d3-B153-00C04F79FAA6}")), m_wndView, 0);

hr = m_wndView.QueryControl(&m_spWMPPlayer);

These instructions are summarized as follows:

1. add

#include "wmp.h"
#include <atlbase.h>
#include <atlcom.h>
#include <atlhost.h>
#include <atlctl.h>

to the view header file.

2. Declare member variables, as follows to the view class

CAxWindow  m_wndView;  
CComPtr<IWMPPlayer>  m_spWMPPlayer; 

3. add AtlAxWinInit();to the App InitInstance().

4. Add local variables:CComPtr<IAxWinHostWindow>  spHost;
HRESULT  hr;

Note, I also had to add RECT rcClient for a local variable,
 but that is not specified in the instructions.

5. Add the following code:

m_wndView.Create(m_hWnd, rcClient, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);
hr = m_wndView.QueryHost(&spHost);
hr = spHost->CreateControl(CComBSTR(_T("{6BF52A52-394A-11d3-B153-00C04F79FAA6}")), m_wndView, 0);
hr = m_wndView.QueryControl(&m_spWMPPlayer);

You could put this in OnDraw in the view, or you could 
do as I did and create a DisplayMov subroutine that I call 
from OnDraw. See code in my original post. Now, set a 
breakpoint at the "QueryHost" line, and compile and run. 
You will see hr = E_Fail in the auto variables of the 
debug window.

To use the Windows Media Player ActiveX control (including the user interface) in a Windows-based program, you must provide an ActiveX control container. ATL provides the CAxWindow class to provide ActiveX host window functionality.

• CWMPHost.h:

// CWMPHost.h : Declaration of the CWMPHost
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//

#include "resource.h"       // main symbols
#include <oledlg.h>
#include "wmp.h"
#include "CWMPEventDispatch.h"


/
// CWMPHost

class CWMPHost : public CWindowImpl<CWMPHost, CWindow, CWinTraits<WS_OVERLAPPEDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE> >
{
public:
    DECLARE_WND_CLASS_EX(NULL, 0, 0)

    BEGIN_MSG_MAP(CWMPHost)
        MESSAGE_HANDLER(WM_CREATE, OnCreate)
        MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
        MESSAGE_HANDLER(WM_SIZE, OnSize)
        MESSAGE_HANDLER(WM_ERASEBKGND, OnErase)
        MESSAGE_HANDLER(WM_CONTEXTMENU, FowardMsgToWMP)

        COMMAND_ID_HANDLER(ID_FILE_OPEN, OnFileOpen)
        COMMAND_ID_HANDLER(ID_APP_EXIT, OnFileExit)

        COMMAND_ID_HANDLER(ID_WMPCORE_CLOSE, OnWMPCoreClose)
        COMMAND_ID_HANDLER(ID_WMPCORE_URL, OnWMPCoreURL)
        COMMAND_ID_HANDLER(ID_WMPCORE_OPENSTATE, OnWMPCoreOpenState)
        COMMAND_ID_HANDLER(ID_WMPCORE_PLAYSTATE, OnWMPCorePlayState)
        COMMAND_ID_HANDLER(ID_WMPCORE_VERSIONINFO, OnWMPCoreVersionInfo)
        COMMAND_ID_HANDLER(ID_WMPCORE_LAUNCHURL, OnWMPCoreLaunchURL)
        COMMAND_ID_HANDLER(ID_WMPCORE_ISONLINE, OnWMPCoreIsOnline)
        COMMAND_ID_HANDLER(ID_WMPCORE_STATUS, OnWMPCoreStatus)
        COMMAND_ID_HANDLER(ID_WMPCORE_CONTROLS, OnWMPCoreInterface)       
        COMMAND_ID_HANDLER(ID_WMPCORE_SETTINGS, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_CURRENTMEDIA, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_MEDIACOLLECTION, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_PLAYLISTCOLLECTION, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_NETWORK, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_CURRENTPLAYLIST, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_CDROMCOLLECTION, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_CLOSEDCAPTION, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE_ERROR, OnWMPCoreInterface)
        COMMAND_ID_HANDLER(ID_WMPCORE2_DVD, OnWMPCoreInterface)

        COMMAND_ID_HANDLER(ID_WMPPLAYER_ENABLED, OnWMPPlayerEnabled)        
        COMMAND_ID_HANDLER(ID_WMPPLAYER_FULLSCREEN, OnWMPPlayerFullScreen)        
        COMMAND_ID_HANDLER(ID_WMPPLAYER_ENABLECONTEXTMENU, OnWMPPlayerEnableContextMenu)        
        COMMAND_ID_HANDLER(ID_WMPPLAYER_UIMODE, OnWMPPlayerUIMode)        
        COMMAND_ID_HANDLER(ID_WMPPLAYER2_STRETCHTOFIT, OnWMPPlayer2StretchToFit)        
    END_MSG_MAP()

    void OnFinalMessage(HWND /*hWnd*/);

    LRESULT OnDestroy(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& bHandled );
    LRESULT OnCreate(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& /* bHandled */);

    LRESULT OnErase(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& /* bHandled */);
    LRESULT OnSize(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& /* bHandled */);
    LRESULT OnFileOpen(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnFileExit(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);

    LRESULT OnWMPCoreClose(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreURL(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreOpenState(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCorePlayState(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreVersionInfo(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreLaunchURL(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreIsOnline(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreStatus(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPCoreInterface(WORD /* wNotifyCode */, WORD wID, HWND /* hWndCtl */, BOOL& /* bHandled */);

    LRESULT OnWMPPlayerEnabled(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPPlayerFullScreen(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPPlayerEnableContextMenu(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT OnWMPPlayerUIMode(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
 
    LRESULT OnWMPPlayer2StretchToFit(WORD /* wNotifyCode */, WORD /* wID */, HWND /* hWndCtl */, BOOL& /* bHandled */);
    LRESULT FowardMsgToWMP(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

    CAxWindow                   m_wndView;
    CComPtr<IWMPPlayer>         m_spWMPPlayer;
    CComPtr<IConnectionPoint>   m_spConnectionPoint;
    DWORD                       m_dwAdviseCookie;
};

• CWMPHost.cpp:

// CWMPHost.cpp : Implementation of the CWMPHost
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//

#include "stdafx.h"
#include "CWMPHost.h"
#include "dialogs.h"


/
// CWMPHost

void CWMPHost::OnFinalMessage(HWND /*hWnd*/)
{
    ::PostQuitMessage(0);
}

LRESULT CWMPHost::OnCreate(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& /* bHandled */)
{
    AtlAxWinInit();
    CComPtr<IAxWinHostWindow>           spHost;
    CComPtr<IConnectionPointContainer>  spConnectionContainer;
    CComWMPEventDispatch                *pEventListener = NULL;
    CComPtr<IWMPEvents>                 spEventListener;
    HRESULT                             hr;
    RECT                                rcClient;

    m_dwAdviseCookie = 0;

    // create window

    GetClientRect(&rcClient);
    m_wndView.Create(m_hWnd, rcClient, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);
    if (NULL == m_wndView.m_hWnd)
        goto FAILURE;
    
    // load OCX in window

    hr = m_wndView.QueryHost(&spHost);
    if (FAILMSG(hr))
        goto FAILURE;

    hr = spHost->CreateControl(CComBSTR(L"{6BF52A52-394A-11d3-B153-00C04F79FAA6}"), m_wndView, 0);
    if (FAILMSG(hr))
        goto FAILURE;

    hr = m_wndView.QueryControl(&m_spWMPPlayer);
    if (FAILMSG(hr))
        goto FAILURE;

    // start listening to events

    hr = CComWMPEventDispatch::CreateInstance(&pEventListener);
    spEventListener = pEventListener;
    if (FAILMSG(hr))
        goto FAILURE;

    hr = m_spWMPPlayer->QueryInterface(&spConnectionContainer);
    if (FAILMSG(hr))
        goto FAILURE;

    // See if OCX supports the IWMPEvents interface
    hr = spConnectionContainer->FindConnectionPoint(__uuidof(IWMPEvents), &m_spConnectionPoint);
    if (FAILED(hr))
    {
        // If not, try the _WMPOCXEvents interface, which will use IDispatch
        hr = spConnectionContainer->FindConnectionPoint(__uuidof(_WMPOCXEvents), &m_spConnectionPoint);
        if (FAILMSG(hr))
            goto FAILURE;
    }

    hr = m_spConnectionPoint->Advise(spEventListener, &m_dwAdviseCookie);
    if (FAILMSG(hr))
        goto FAILURE;

    return 0;

FAILURE:
    ::PostQuitMessage(0);
    return 0;
}

LRESULT CWMPHost::OnDestroy(UINT /* uMsg */, WPARAM /* wParam */, LPARAM /* lParam */, BOOL& bHandled )
{
    // stop listening to events

    if (m_spConnectionPoint)
    {
        if (0 != m_dwAdviseCookie)
            m_spConnectionPoint->Unadvise(m_dwAdviseCookie);
        m_spConnectionPoint.Release();
    }

    // close the OCX

    if (m_spWMPPlayer)
    {
        m_spWMPPlayer->close();
        m_spWMPPlayer.Release();
    }

    bHandled = FALSE;
    return 0;
}

3、C++測(cè)試代碼

在基于對(duì)話(huà)框的MFC應(yīng)用程序中嵌入了Windows Media Player窗口媒體播放器Activex控件。

• 新建一個(gè)基于MFC對(duì)話(huà)框工程
  

• 添加ActiveX控件
  鼠標(biāo)右鍵彈出菜單，選擇“插入ActiveX控件”
  
  顯示ActvieX控件列表窗口如下：
  
  控件被添加到MFC窗口上。
  
  鼠標(biāo)右鍵，添加控件變量。自動(dòng)生成類(lèi)文件COCX.h，COCX.cpp。
  
  鼠標(biāo)右鍵，選擇“類(lèi)向?qū)А?，添加wmp的核心播放類(lèi)。
  
  從wmp.dll來(lái)生成類(lèi)代碼文件。
  
  自動(dòng)生成類(lèi)文件CWMPPlayer4.h，CWMPPlayer4.cpp。
  將COCX m_player; 改成 CWMPPlayer4 m_player;
  
  然后換一種方式，通過(guò)“類(lèi)型庫(kù)種的MFC類(lèi)”，添加其他的wmp封裝類(lèi)。比如controls、settings、playlist等。
  
  這里添加其他5個(gè)wmp輔助封裝類(lèi),如下：
  
  最后，VS代碼工程的文件組織結(jié)構(gòu)如下：
  

• （1）定義變量

//#include "COCX.h"
#include "CWMPControls.h"
#include "CWMPSettings.h"
#include "CWMPPlaylist.h"
#include "CWMPMedia.h"
#include "CWMPPlayer4.h"

//COCXm_player;
CWMPControls m_control;
CWMPSettings m_set;
CWMPPlaylist m_playlist;
CWMPMedia m_media;
CWMPPlayer4 m_player;

• （2）播放視頻文件

char szFileFilter[]=
	"Mp3 File(*.mp3)|*.mp3|"
	"MPEG File(*.mpeg)|*.mpeg|"
	"Media File(*.asf)|*.asf|"
	"Video File(*.dat)|*.dat|"
	"MPGA File(*.mpga)|*.mpga|"
	"Wave File(*.wav)|*.wav|"
	"AVI File(*.avi)|*.avi|"
	"Movie File(*.mov)|*.mov|"
	"Mid File(*.mid;*,rmi)|*.mid;*.rmi|"
	"Wma File(*.wma)|*.wma|"
	"All File(*.*)|*.*||";

CFileDialog fileDialog( TRUE,NULL,NULL,NULL,szFileFilter,this);
if (fileDialog.DoModal() == IDOK)
{
	CString fileName=fileDialog.GetPathName();
	m_player.put_URL(fileName);
}

//創(chuàng)建一個(gè)播放列表
m_playlist = static_cast<CWMPPlaylist>(m_player.get_currentPlaylist());
m_player.put_fullScreen(tru);

char szFileFilter[]=
	"Mp3 File(*.mp3)|*.mp3|"
	"MPEG File(*.mpeg)|*.mpeg|"
	"Media File(*.asf)|*.asf|"
	"Video File(*.dat)|*.dat|"
	"MPGA File(*.mpga)|*.mpga|"
	"Wave File(*.wav)|*.wav|"
	"AVI File(*.avi)|*.avi|"
	"Movie File(*.mov)|*.mov|"
	"Mid File(*.mid;*,rmi)|*.mid;*.rmi|"
	"Wma File(*.wma)|*.wma|"
	"All File(*.*)|*.*||";

CFileDialog fileDialog( TRUE,NULL,NULL,NULL,szFileFilter,this);
if (fileDialog.DoModal() == IDOK)
{
	CString fileName=fileDialog.GetPathName();
	//創(chuàng)建一個(gè)媒體
	m_media = static_cast<CWMPMedia>(m_player.newMedia(fileName));
	//將媒體添加到播放列表
	m_playlist.appendItem(m_media);
	//將列表添加到當(dāng)前列表，以便實(shí)現(xiàn)自動(dòng)播放
	m_player.put_currentPlaylist(m_playlist);
	 
	m_set = (CWMPSettings)m_player.get_settings();
	//參數(shù)true設(shè)置自動(dòng)播放,false不設(shè)置自動(dòng)播放
	m_set.put_autoStart(true);
	//將媒體的名字添加到列表控件
	m_listCtrl.InsertItem(0, m_media.get_name());
}

m_control = static_cast<CWMPControls>(m_player.get_controls());
m_control.play();
m_control.pause();
m_control.stop();

上面的步驟操作不正確的話(huà)，會(huì)出現(xiàn)如下的提示框。

4、IE測(cè)試代碼

<!-- Copyright (c) Microsoft Corporation.  All rights reserved. -->
<!-- Windows Media Player SDK Embedded Player Sample -->

<HTML>
<HEAD>
    <TITLE>Embedded Player Control Sample</TITLE>
</HEAD>

<BODY onLoad = "Init();">

<H1>Embedding Windows Media Player</H1>
<H2>Includes custom error handling</H2>

<OBJECT id=Player classid=CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6 height="200" width="200">
    <PARAM NAME="autoStart" VALUE="true">
</OBJECT>

<BR><BR>

<INPUT type=button value="Play Audio" name=btnPlayAudio  onclick=PlayAudio()>
<INPUT type=button value="Play Video" name=btnPlayVideo  onclick=PlayVideo()>
<INPUT type=button value="  Pause  " name=btnPause  onclick=PauseMe()>
<INPUT type=button value="Stop" name=btnStop  onclick=StopMe()>
<INPUT type=button value="Generate Error" name=btnMakeError  onclick=MakeError()>

<BR><BR>

<DIV id=divName size=50>Media name: </DIV><BR><BR>
<DIV id=divState size=50>Playstate: </DIV><BR><BR>
<DIV id=divStatus size=50>Status: </DIV><BR><BR>

<SCRIPT language = "JScript">

var g_bPaused = false; // To track pause button state;

// Check for JScript errors.
onerror = ShowError;

// Display JScript errors.
function ShowError (msg,url,linenumber)
{
    alert(msg + " at line " + linenumber);
}

// Initialized states.
function Init()
{
    Player.uiMode = "none";
    btnPause.disabled = true;
    btnStop.disabled = true;

    // Request Media Libary access rights, if none exists.
    if( Player.settings.mediaAccessRights == "none" )
    {
        // Request access rights.
        Player.settings.requestMediaAccessRights( "read" );
    }
}

// Play a known audio file from Media Library.
function PlayAudio ()
{
}

// Play a known video file from Media Library.
function PlayVideo ()
{
	Player.URL = "d:\\test.mp4";
}

// Try to play a file that doesn't exist.
function MakeError ()
{
    StopMe();
    Player.URL = "d:\\test.mp4"; // This assumes you don't have a file by this name!
}

// Pause the Player.
function PauseMe ()
{
    if( g_bPaused == true )
    {
        Player.controls.play();
        g_bPaused = false;
        btnPause.value = "  Pause  ";
    }
    else
    {  
        Player.controls.pause();
        g_bPaused = true;
        btnPause.value = "Resume";
    }
}

// Stop the Player.
function StopMe ()
{
    Player.controls.stop();
}

</SCRIPT>

<SCRIPT LANGUAGE = "JScript"  FOR = Player EVENT = PlayStateChange(NewState)>

// Test for the current state.
// If playing, display the name of the current media.

switch (NewState){
    case 1:
    divState.innerHTML = "Playstate: Stopped";
    // Toggle the button states.
    btnPause.disabled = true;
    btnPause.value = "  Pause  ";
    btnStop.disabled = true;
    break;

    case 2:
    divState.innerHTML = "Playstate: Paused";
    break;

    case 3:
    divState.innerHTML = "Playstate: Playing";
    divName.innerHTML = "Media name: " + Player.currentMedia.name;
    // Toggle the button states.
    btnPause.disabled = false;
    btnStop.disabled = false;
    break;

    case 6:
    divState.innerHTML = "Playstate: Buffering";
    break;

    case 7:
    divState.innerHTML = "Playstate: Waiting";
    break;

    case 8:
    divState.innerHTML = "Playstate: Media Ended";
    break;

    case 9:
    divState.innerHTML = "Playstate: Transitioning";
    break;

    case 10:
    divState.innerHTML = "Playstate: Ready";
    break;

    // Other cases go here.
    default:
    divState.innerHTML = "Playstate: Other";
}

</SCRIPT>

<SCRIPT LANGUAGE = "JScript"  FOR = Player EVENT = StatusChange()>
    divStatus.innerHTML = "Status: " + Player.status;
</SCRIPT>

<SCRIPT LANGUAGE = "JScript"  FOR = Player  EVENT = Error()>
    var strError = "";

    // Store the number of errors in the queue.
    var max = Player.error.errorCount

    // Loop through the list of errors.
    for (var i = 0; i < max; i++)
    {
        // Display the error description for each item.
        strError += "Error: " + Player.error.item(i).errorDescription + "\n";
    }

    alert( strError ); // Display the error warning.

    // Clear the error queue to prepare for the next group of errors.
    Player.error.clearErrorQueue();
</SCRIPT>
</BODY>
</HTML>

5、C#測(cè)試代碼

“工具箱”中單擊右鍵，選擇“選擇項(xiàng)”菜單，打開(kāi)“選擇工具箱項(xiàng)”窗口，選擇“COM組件”標(biāo)簽，在列表中找到并勾選“Windows Media Player”組件，單擊“確定”按鈕。將該組件添加到指定的工具箱選項(xiàng)卡中。

• 添加wmp的com控件引用
  
• 窗口上添加控件
  
• 添加邏輯代碼

/// <summary>
/// Open new audio from the Library.
/// </summary>
private void btnOpen_Click(object sender, System.EventArgs e)
{
    Library libForm = new Library();
    libForm.WMPlayer = Player;
    libForm.ShowDialog();
    if (libForm.DialogResult == DialogResult.OK)
    {
        try
        {
            theMedia = libForm.TheMedia;

            if(theMedia != null) // Test whether the user chose a media item. 
            {
                lblSongName.Text = theMedia.name;
                lblSourceURL.Text = theMedia.sourceURL;

                // Set the current media. It will play automatically.
                Player.currentMedia = theMedia;
            }
        }      
        catch(COMException comExc)
        {
            int hr = comExc.ErrorCode; 
            String Message = String.Format("There was an error.\nHRESULT = {1}\n{2}", hr.ToString(), comExc.Message);
            MessageBox.Show(Message, "COM Exception");
        }  
     }
}
/// <summary>
/// Play/Pause transport control button handler.
/// </summary>
private void btnPlayPause_Click(object sender, System.EventArgs e)
{
    try
    {
        if(Player.playState == WMPPlayState.wmppsPlaying)
        {
            Player.Ctlcontrols.pause();
        }
        else
        {
            Player.Ctlcontrols.play();
        }
    }
    catch(COMException comExc)
    {
        int hr = comExc.ErrorCode; 
        String Message = String.Format("There was an error.\nHRESULT = {1}\n{2}", hr.ToString(), comExc.Message);
        MessageBox.Show(Message, "COM Exception");
    }  
}

/// <summary>
/// Centralize UI state control.
/// </summary>
/// <param name="newState">State of the player</param>
private void SetUIState(WMPPlayState newState)
{
    bool canFF, canRew, canPlay, canPause, canSeek, canStop;    
    double fDuration;

    try
    {
        canFF = Player.Ctlcontrols.get_isAvailable("fastForward");
        canRew = Player.Ctlcontrols.get_isAvailable("fastReverse");
        canPlay = Player.Ctlcontrols.get_isAvailable("Play");
        canPause = Player.Ctlcontrols.get_isAvailable("Pause");
        canSeek = Player.Ctlcontrols.get_isAvailable("currentPosition");
        canStop = Player.Ctlcontrols.get_isAvailable("Stop");
        fDuration = Player.currentMedia.duration;
    }
    catch(COMException comExc)
    {
        int hr = comExc.ErrorCode; 
        String Message = String.Format("There was an error.\nHRESULT = {1}\n{2}", hr.ToString(), comExc.Message);
        MessageBox.Show(Message, "COM Exception");
        return;
    } 
}

// 播放rmvb/rm等非官方格式文件要先雙擊文件再點(diǎn)播放按鈕，而不能直接播放的問(wèn)題，并彈出警告消息框。
// 方法：先設(shè)置屬性：wmp.settings.enableErrorDialogs = false;事實(shí)上這個(gè)屬性默認(rèn)就是false。不用設(shè)置。
private void wmp_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
//如果已播放完畢就播放下一個(gè)文件
if ((WMPLib.WMPPlayState)e.newState == WMPLib.WMPPlayState.wmppsReady)  
     Player.Ctlcontrols.play();
}

Player.currentMedia.sourceURL; //獲取正在播放的媒體文件的路徑
Player.currentMedia.name;          //獲取正在播放的媒體文件的名稱(chēng)
Player.currentMedia.setItemInfo(string);  //通過(guò)屬性名設(shè)置媒體信息 
Player.currentMedia.name:string;  //同 currentMedia.getItemInfo("Title") 
Player.currentMedia.duration:double; 媒體總長(zhǎng)度 
Player.currentMedia.durationString:string; 媒體總長(zhǎng)度，字符串格式。如“03:24” 
Player.currentMedia.getItemInfo(const string); 
獲取當(dāng)前媒體信息："Title"=媒體標(biāo)題，"Author"=藝術(shù)家，"Copyright"=版權(quán)信息，"Description"=媒體內(nèi)容描述， "Duration"=持續(xù)時(shí)間（秒），"FileSize"=文件大小，"FileType"=文件類(lèi)型，"sourceURL"=原始地址 

//在視頻播放之后,可以通過(guò)如下方式讀取源視頻的寬度和高度,然后設(shè)置其還原為原始的大小
int intWidth = Player.currentMedia.imageSourceWidth;
int intHeight = Player.currentMedia.imageSourceHeight;
Player.Width = intWidth + 2;
Player.Height = intHeight + 2;

//播放器基本設(shè)置 
Player.settings.volume:integer; 音量，0-100 
Player.settings.autoStart:Boolean; 是否自動(dòng)播放 
Player.settings.mute:Boolean; 是否靜音 
Player.settings.playCount:integer; 播放次數(shù) 

//順序播放
Player.settings.setMode("shuffle", False)
//隨機(jī)播放
Player.settings.setMode("shuffle", True)
//循環(huán)播放
Player.settings.setMode("loop", True)

//當(dāng)前播放列表屬性 
Player.currentPlaylist.count:integer; 當(dāng)前播放列表所包含媒體數(shù) 
Player.currentPlaylist.Item[integer]; 獲取或設(shè)置指定項(xiàng)目媒體信息，其子屬性同wmp.currentMedia 

Player.AllowChangeDisplaySize　//是否允許自由設(shè)置播放圖象大小 
Player.DisplaySize　　　　　　　//設(shè)置播放圖象大小 
　　　　1-MpDefaultSize　　　　　　　　　//原始大小 
　　　　2-MpHalfSize　　　　　　　　　　 //原始大小的一半 
　　　　3-MpDoubleSize　　　　　　　　　 //原始大小的兩倍 
　　　　4-MpFullScreen　　　　　　　　　 //全屏 
　　　　5-MpOneSixteenthScreen　　　　　 //屏幕大小的1/16 
　　　　6-MpOneFourthScreen　　　　　　　//屏幕大小的1/4 
　　　　7-MpOneHalfScreen　　　　　　　　//屏幕大小的1/2 
Player.ClickToPlay　　　　　　　//是否允許單擊播放窗口啟動(dòng)Media Player

//播放器基本控制 
Player.Ctlcontrols.Play　　　　　　　　　　播放 
Player.Ctlcontrols.Stop　　　　　　　　　　停止 
Player.Ctlcontrols.Pause　　　　　　　　　 暫停 
Player.Ctlcontrols.PlayCount　　　　　　　　文件播放次數(shù) 
Player.Ctlcontrols.AutoRewind　　　　　　　是否循環(huán)播放 
Player.Ctlcontrols.Balance　　　　　　　　　聲道 
Player.Ctlcontrols.Volume　　　　　　　　　音量 
Player.Ctlcontrols.Mute　　　　　　　　　　靜音 
Player.Ctlcontrols.EnableContextMenu　　　　是否允許在控件上點(diǎn)擊鼠標(biāo)右鍵時(shí)彈出快捷菜單 
Player.Ctlcontrols.AnimationAtStart　　　　是否在播放前先播放動(dòng)畫(huà) 
Player.Ctlcontrols.ShowControls　　　　　　是否顯示控件工具欄 
Player.Ctlcontrols.ShowAudioControls　　　　是否顯示聲音控制按鈕 
Player.Ctlcontrols.ShowDisplay　　　　　　　是否顯示數(shù)據(jù)文件的相關(guān)信息 
Player.Ctlcontrols.ShowGotoBar　　　　　　　是否顯示Goto欄 
Player.Ctlcontrols.ShowPositionControls　　是否顯示位置調(diào)節(jié)按鈕 
Player.Ctlcontrols.ShowStatusBar　　　　　　是否顯示狀態(tài)欄 
Player.Ctlcontrols.ShowTracker　　　　　　　是否顯示進(jìn)度條 
Player.Ctlcontrols.FastForward　　　　　　　快進(jìn) 
Player.Ctlcontrols.FastReverse　　　　　　　快退 
Player.Ctlcontrols.Rate　　　　　　　　　　快進(jìn)／快退速率 
Player.Ctlcontrols.currentPosition:double; 當(dāng)前進(jìn)度 
Player.Ctlcontrols.currentPositionString:string; 當(dāng)前進(jìn)度，字符串格式。如“00:23” 
Player.Ctlcontrols.next; 下一曲 
Player.Ctlcontrols.previous; 上一曲 

• 測(cè)試如下：
  
  
  

結(jié)語(yǔ)

如果您覺(jué)得該方法或代碼有一點(diǎn)點(diǎn)用處，可以給作者點(diǎn)個(gè)贊，或打賞杯咖啡；╮(￣▽?zhuān)?╭
如果您感覺(jué)方法或代碼不咋地//(ㄒoㄒ)//，就在評(píng)論處留言，作者繼續(xù)改進(jìn)；o_O???
如果您需要相關(guān)功能的代碼定制化開(kāi)發(fā)，可以留言私信作者；(????)
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