www.pudn.com > media_player_sample.zip > CMediaBookmarker.h

// CMediaBookmarker.h : Declaration of the CMediaBookmarker class 
// 
// Copyright (c) Microsoft Corporation. All rights reserved.  THIS CODE IS MADE AVAILABLE AS  
// IS, WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK OF THE USE OR THE RESULTS FROM THE USE  
// OF THIS CODE REMAINS WITH THE USER. USE AND REDISTRIBUTION OF THIS CODE, WITH OUR  
// WITHOUT MODICATION, IS HEREBY PERMITTED. 
// 
 
#include "resource.h"  
#include  
#include "PlayerOCX.h" 
#include "events_dispid.h" 
 
#define IDC_PLAYER			1000 
#define IDB_PLAY			1001 
#define IDB_PAUSE			1002 
#define	IDB_STOP			1003 
#define IDB_FASTREVERSE		1004 
#define IDB_FASTFORWARD		1005 
#define IDB_MARK			1006 
#define IDB_CLEARMARKS		1007 
#define IDB_PLAYMARK		1008 
#define IDL_BOOKMARKS		1009 
#define MAX_MARKLENGTH		256 
#define MAX_BOOKMARKS		100 
#define MAX_PLAYER_HEIGHT	198 
#define STATUS_BAR_HEIGHT	14 
#define IDB_ABOUT			1010 
#define IDB_TXT_ADDRESS		1011 
#define IDB_GO				1012 
 
 
///////////////////////////////////////////////////////////////////////////// 
// CMediaBookmarker 
 
class CMediaBookmarker :  
	public CWindowImpl >, 
	public CComObjectRootEx, 
	public _IWMPEvents 
{ 
	CAxWindow					m_wndView;						// The window that hosts the Windows Media Player control 
	CComPtr				m_spWMPPlayer;					// A pointer to the Windows Media Player control interface 
	CComPtr	m_spConnectionPoint;			// The connection point through which events are handled 
	DWORD						m_dwAdviseCookie;				// A cookie used by the connection point to cease event notifications 
	DWORD						m_nFilterIndex;					// An index to the current file name filter 
	int							m_cMarkCount;					// The bookmark count 
	TCHAR*						m_szCurrentFile;				// The name of the current file (without path information) 
	BSTR						m_bstrFileName[MAX_BOOKMARKS];	// An array that stores bookmarked file names 
	double						m_dMarkPosition[MAX_BOOKMARKS];	// An array that stores bookmarked file positions 
 
public: 
 
	BEGIN_COM_MAP(CMediaBookmarker) 
		COM_INTERFACE_ENTRY_IID(__uuidof(_IWMPEvents), _IWMPEvents) 
		COM_INTERFACE_ENTRY(IDispatch) 
	END_COM_MAP() 
 
	DECLARE_WND_CLASS(NULL) 
 
	BEGIN_MSG_MAP(CMediaBookmarker) 
 
		MESSAGE_HANDLER(	WM_CREATE,			OnCreate) 
		MESSAGE_HANDLER(	WM_DESTROY,			OnDestroy) 
 
		COMMAND_ID_HANDLER( IDOK,				OnOK) 
		COMMAND_ID_HANDLER( ID_FILE_OPEN1,		OnFileOpen) 
		COMMAND_ID_HANDLER( ID_OPEN_URL,		OnOpenURL) 
		COMMAND_ID_HANDLER( ID_FILE_EXIT1,		OnFileExit) 
		COMMAND_ID_HANDLER( IDB_MARK,			OnMark) 
		COMMAND_ID_HANDLER( IDB_CLEARMARKS,		OnClearMarks) 
		COMMAND_ID_HANDLER( IDB_PLAYMARK,		OnPlayMark) 
		COMMAND_ID_HANDLER( IDB_PLAY,			OnPlay) 
		COMMAND_ID_HANDLER( IDB_PAUSE,			OnPause) 
		COMMAND_ID_HANDLER( IDB_STOP,			OnStop) 
		COMMAND_ID_HANDLER( IDB_FASTFORWARD,	OnFastForward) 
		COMMAND_ID_HANDLER( IDB_FASTREVERSE,	OnFastReverse) 
		COMMAND_ID_HANDLER( IDB_ABOUT,			OnAbout) 
		COMMAND_ID_HANDLER( ID_MNU_PROPERTIES,	OnProperties) 
		COMMAND_ID_HANDLER( IDB_GO,				OnGoURL) 
	END_MSG_MAP() 
 
	 
	// CMediaBookmarker methods: 
 
	CMediaBookmarker(); 
	~CMediaBookmarker(); 
	BOOL Bookmark(TCHAR *szBookmarkText); 
	BOOL PlayMedia(TCHAR *szFile, double dPosition); 
 
 
	// Window methods: 
	 
	LRESULT OnCreate(		UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled); 
	LRESULT OnDestroy(		UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled); 
 
 
	// User-interface methods: 
 
	LRESULT OnOK(			WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnFileOpen(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnFileExit(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnMark(			WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnClearMarks(	WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnPlayMark(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnPlay(			WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnPause(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnStop(			WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnFastForward(	WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnFastReverse(	WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnAbout(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnOpenURL(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnProperties(	WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
	LRESULT OnGoURL(		WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled); 
 
	// IDispatch methods: 
 
	STDMETHOD(GetIDsOfNames)(	REFIID				riid,  
								OLECHAR FAR *FAR	*rgszNames, 
								unsigned int		cNames,  
								LCID				lcid,  
								DISPID FAR			*rgDispId ) 
																{ return( E_NOTIMPL ); }; 
 
	STDMETHOD(GetTypeInfo)(		unsigned int		iTInfo,  
								LCID				lcid,  
								ITypeInfo FAR *FAR	*ppTInfo ) 
																{ return( E_NOTIMPL ); }; 
 
	STDMETHOD(GetTypeInfoCount)(unsigned int FAR	*pctinfo ) 
																{ return( E_NOTIMPL ); }; 
 
	STDMETHOD(Invoke)(			DISPID				dispIdMember,	   
								REFIID				riid,			   
								LCID				lcid,				 
								WORD				wFlags,			   
								DISPPARAMS FAR		*pDispParams,   
								VARIANT FAR			*pVarResult,   
								EXCEPINFO FAR		*pExcepInfo,   
								unsigned int FAR	*puArgErr ); 
 
 
	// Windows Media Player Control event methods: 
 
	void OnPlayStateChange(long NewState); 
	HWND h_editURL; 
	HWND h_btnAbout; 
 
}; 
 
typedef CComObject CComMediaBookmarker;