#ifndef __IAudioMeterInformation_FWD_DEFINED__
#define __IAudioMeterInformation_FWD_DEFINED__
typedef interface IAudioMeterInformation IAudioMeterInformation;

#endif 	/* __IAudioMeterInformation_FWD_DEFINED__ */

#ifdef __cplusplus
extern "C"{
#endif 

/* interface __MIDL_itf_endpointvolume_0000_0003 */
/* [local] */ 

#ifndef __IAudioMeterInformation_INTERFACE_DEFINED__
#define __IAudioMeterInformation_INTERFACE_DEFINED__

/* interface IAudioMeterInformation */
/* [unique][helpstring][nonextensible][uuid][local][object] */ 

DEFINE_GUID(IID_IAudioMeterInformation, 0xc02216f6, 0x8c67, 0x4b5b, 0x9d,0x00, 0xd0,0x08,0xe7,0x3e,0x00,0x64);
#if defined(__cplusplus) && !defined(CINTERFACE)
    
    MIDL_INTERFACE("c02216f6-8c67-4b5b-9d00-d008e73e0064")
    IAudioMeterInformation : public IUnknown
    {
    public:
        virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE GetPeakValue( 
            /* [out] */ float *pfPeak) = 0;
        
        virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE GetMeteringChannelCount( 
            /* [annotation][out] */ 
            _Out_  UINT *pnChannelCount) = 0;
        
        virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE GetChannelsPeakValues( 
            /* [in] */ UINT32 u32ChannelCount,
            /* [size_is][out] */ float *afPeakValues) = 0;
        
        virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE QueryHardwareSupport( 
            /* [annotation][out] */ 
            _Out_  DWORD *pdwHardwareSupportMask) = 0;
        
    };
    
#ifdef __CRT_UUID_DECL
__CRT_UUID_DECL(IAudioMeterInformation, 0xc02216f6, 0x8c67, 0x4b5b, 0x9d,0x00, 0xd0,0x08,0xe7,0x3e,0x00,0x64)
#endif
#else 	/* C style interface */

    typedef struct IAudioMeterInformationVtbl
    {
        BEGIN_INTERFACE
        
        HRESULT ( STDMETHODCALLTYPE *QueryInterface )( 
            IAudioMeterInformation * This,
            /* [in] */ REFIID riid,
            /* [annotation][iid_is][out] */ 
            _COM_Outptr_  void **ppvObject);
        
        ULONG ( STDMETHODCALLTYPE *AddRef )( 
            IAudioMeterInformation * This);
        
        ULONG ( STDMETHODCALLTYPE *Release )( 
            IAudioMeterInformation * This);
        
        /* [helpstring] */ HRESULT ( STDMETHODCALLTYPE *GetPeakValue )( 
            IAudioMeterInformation * This,
            /* [out] */ float *pfPeak);
        
        /* [helpstring] */ HRESULT ( STDMETHODCALLTYPE *GetMeteringChannelCount )( 
            IAudioMeterInformation * This,
            /* [annotation][out] */ 
            _Out_  UINT *pnChannelCount);
        
        /* [helpstring] */ HRESULT ( STDMETHODCALLTYPE *GetChannelsPeakValues )( 
            IAudioMeterInformation * This,
            /* [in] */ UINT32 u32ChannelCount,
            /* [size_is][out] */ float *afPeakValues);
        
        /* [helpstring] */ HRESULT ( STDMETHODCALLTYPE *QueryHardwareSupport )( 
            IAudioMeterInformation * This,
            /* [annotation][out] */ 
            _Out_  DWORD *pdwHardwareSupportMask);
        
        END_INTERFACE
    } IAudioMeterInformationVtbl;

    interface IAudioMeterInformation
    {
        CONST_VTBL struct IAudioMeterInformationVtbl *lpVtbl;
    };

    

#ifdef COBJMACROS


#define IAudioMeterInformation_QueryInterface(This,riid,ppvObject)	\
    ( (This)->lpVtbl -> QueryInterface(This,riid,ppvObject) ) 

#define IAudioMeterInformation_AddRef(This)	\
    ( (This)->lpVtbl -> AddRef(This) ) 

#define IAudioMeterInformation_Release(This)	\
    ( (This)->lpVtbl -> Release(This) ) 


#define IAudioMeterInformation_GetPeakValue(This,pfPeak)	\
    ( (This)->lpVtbl -> GetPeakValue(This,pfPeak) ) 

#define IAudioMeterInformation_GetMeteringChannelCount(This,pnChannelCount)	\
    ( (This)->lpVtbl -> GetMeteringChannelCount(This,pnChannelCount) ) 

#define IAudioMeterInformation_GetChannelsPeakValues(This,u32ChannelCount,afPeakValues)	\
    ( (This)->lpVtbl -> GetChannelsPeakValues(This,u32ChannelCount,afPeakValues) ) 

#define IAudioMeterInformation_QueryHardwareSupport(This,pdwHardwareSupportMask)	\
    ( (This)->lpVtbl -> QueryHardwareSupport(This,pdwHardwareSupportMask) ) 

#endif /* COBJMACROS */

#endif 	/* C style interface */

#endif 	/* __IAudioMeterInformation_INTERFACE_DEFINED__ */

#ifdef __cplusplus
}
#endif