waveaudio.h

本组件是一个集录音

// WaveAudio.h : Declaration of the CWaveAudio

#ifndef __WAVEAUDIO_H_
#define __WAVEAUDIO_H_

#include "resource.h"       // main symbols
#include <atlctl.h>

#include <mmsystem.h>
#include <comdef.h>

/////////////////////////////////////////////////////////////////////////////
// CWaveAudio
class ATL_NO_VTABLE CWaveAudio : 
	public CComObjectRootEx<CComSingleThreadModel>,
	public IDispatchImpl<IWaveAudio, &IID_IWaveAudio, &LIBID_AUDIOACTIVEXLib>,
	public CComControl<CWaveAudio>,
	public IPersistStreamInitImpl<CWaveAudio>,
	public IOleControlImpl<CWaveAudio>,
	public IOleObjectImpl<CWaveAudio>,
	public IOleInPlaceActiveObjectImpl<CWaveAudio>,
	public IViewObjectExImpl<CWaveAudio>,
	public IOleInPlaceObjectWindowlessImpl<CWaveAudio>,
	public ISupportErrorInfo,
	public IConnectionPointContainerImpl<CWaveAudio>,
	public IPersistStorageImpl<CWaveAudio>,
	public ISpecifyPropertyPagesImpl<CWaveAudio>,
	public IQuickActivateImpl<CWaveAudio>,
	public IDataObjectImpl<CWaveAudio>,
	public IProvideClassInfo2Impl<&CLSID_WaveAudio, &DIID__IWaveAudioEvents, &LIBID_AUDIOACTIVEXLib>,
	public IPropertyNotifySinkCP<CWaveAudio>,
	public CComCoClass<CWaveAudio, &CLSID_WaveAudio>
{
public:
	CWaveAudio()
	{
		m_bRecording = FALSE;
		m_bOpened = FALSE;
		m_wDeviceID = 0;
	}

DECLARE_REGISTRY_RESOURCEID(IDR_WAVEAUDIO)

DECLARE_PROTECT_FINAL_CONSTRUCT()

BEGIN_COM_MAP(CWaveAudio)
	COM_INTERFACE_ENTRY(IWaveAudio)
	COM_INTERFACE_ENTRY(IDispatch)
	COM_INTERFACE_ENTRY(IViewObjectEx)
	COM_INTERFACE_ENTRY(IViewObject2)
	COM_INTERFACE_ENTRY(IViewObject)
	COM_INTERFACE_ENTRY(IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceObject)
	COM_INTERFACE_ENTRY2(IOleWindow, IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceActiveObject)
	COM_INTERFACE_ENTRY(IOleControl)
	COM_INTERFACE_ENTRY(IOleObject)
	COM_INTERFACE_ENTRY(IPersistStreamInit)
	COM_INTERFACE_ENTRY2(IPersist, IPersistStreamInit)
	COM_INTERFACE_ENTRY(ISupportErrorInfo)
	COM_INTERFACE_ENTRY(IConnectionPointContainer)
	COM_INTERFACE_ENTRY(ISpecifyPropertyPages)
	COM_INTERFACE_ENTRY(IQuickActivate)
	COM_INTERFACE_ENTRY(IPersistStorage)
	COM_INTERFACE_ENTRY(IDataObject)
	COM_INTERFACE_ENTRY(IProvideClassInfo)
	COM_INTERFACE_ENTRY(IProvideClassInfo2)
END_COM_MAP()

BEGIN_PROP_MAP(CWaveAudio)
	PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
	PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
	// Example entries
	// PROP_ENTRY("Property Description", dispid, clsid)
	// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()

BEGIN_CONNECTION_POINT_MAP(CWaveAudio)
	CONNECTION_POINT_ENTRY(IID_IPropertyNotifySink)
END_CONNECTION_POINT_MAP()

BEGIN_MSG_MAP(CWaveAudio)
	CHAIN_MSG_MAP(CComControl<CWaveAudio>)
	DEFAULT_REFLECTION_HANDLER()
END_MSG_MAP()
// Handler prototypes:
//  LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
//  LRESULT CommandHandler(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
//  LRESULT NotifyHandler(int idCtrl, LPNMHDR pnmh, BOOL& bHandled);



// ISupportsErrorInfo
	STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid)
	{
		static const IID* arr[] = 
		{
			&IID_IWaveAudio,
		};
		for (int i=0; i<sizeof(arr)/sizeof(arr[0]); i++)
		{
			if (InlineIsEqualGUID(*arr[i], riid))
				return S_OK;
		}
		return S_FALSE;
	}

// IViewObjectEx
	DECLARE_VIEW_STATUS(VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE)

// IWaveAudio
public:
	STDMETHOD(WaveCompare)(/*[in]*/ BSTR Sourcefile, /*[in]*/ BSTR Recordfile, /*[out, retval]*/ float *argu);
	STDMETHOD(Save)(/*[in]*/ BSTR  Filename );
	STDMETHOD(Close)(void);
	STDMETHOD(Play)(void);
	STDMETHOD(Stop)(void);
	STDMETHOD(Record)(void);
	STDMETHOD(Load)(/*[in]*/ BSTR Filename);

	HRESULT OnDraw(ATL_DRAWINFO& di)
	{
		RECT& rc = *(RECT*)di.prcBounds;
		Rectangle(di.hdcDraw, rc.left, rc.top, rc.right, rc.bottom);

		SetTextAlign(di.hdcDraw, TA_CENTER|TA_BASELINE);
		LPCTSTR pszText = _T("ATL 3.0 : WaveAudio");
		TextOut(di.hdcDraw, 
			(rc.left + rc.right) / 2, 
			(rc.top + rc.bottom) / 2, 
			pszText, 
			lstrlen(pszText));

		return S_OK;
	}
private:
	BOOL m_bRecording;	//是否在录音
	BOOL m_bOpened;		//是否打开文件
	WORD m_wDeviceID;	//播放设备ID
};

#endif //__WAVEAUDIO_H_