cmediabookmarker.h

Windows Media Player CE SDK示范程序, EVC4下的程序。

// 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 <commdlg.h>
#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

/////////////////////////////////////////////////////////////////////////////
// CMediaBookmarker

class CMediaBookmarker : 
	public CWindowImpl<CMediaBookmarker, CWindow, CWinTraits<WS_VISIBLE, NULL> >,
	public CComObjectRootEx<CComSingleThreadModel>,
	public _IWMPEvents
{
	CAxWindow					m_wndView;						// The window that hosts the Windows Media Player control
	CComPtr<IWMP>				m_spWMPPlayer;					// A pointer to the Windows Media Player control interface
	CComPtr<IConnectionPoint>	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_OPEN,		OnFileOpen)
		COMMAND_ID_HANDLER( ID_FILE_EXIT,		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)

	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);


	// 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);

};

typedef CComObject<CMediaBookmarker> CComMediaBookmarker;