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Reactos
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149/* * Copyright (C) 2009 Maarten Lankhorst * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */import "unknwn.idl";import "devicetopology.idl";typedef struct AUDIO_VOLUME_NOTIFICATION_DATA{ GUID guidEventContext; BOOL bMuted; FLOAT fMasterVolume; UINT nChannels; FLOAT afChannelVolumes[1];} AUDIO_VOLUME_NOTIFICATION_DATA;cpp_quote("typedef struct AUDIO_VOLUME_NOTIFICATION_DATA *PAUDIO_VOLUME_NOTIFICATION_DATA;")cpp_quote("#define ENDPOINT_HARDWARE_SUPPORT_VOLUME 0x1")cpp_quote("#define ENDPOINT_HARDWARE_SUPPORT_MUTE 0x2")cpp_quote("#define ENDPOINT_HARDWARE_SUPPORT_METER 0x4")interface IAudioEndpointVolumeCallback;interface IAudioEndpointVolume;interface IAudioEndpointVolumeEx;interface IAudioMeterInformation;[ pointer_default(unique), nonextensible, uuid(657804fa-d6ad-4496-8a60-352752af4f89), local, object]interface IAudioEndpointVolumeCallback : IUnknown{ HRESULT OnNotify( AUDIO_VOLUME_NOTIFICATION_DATA *pNotify );}[ pointer_default(unique), nonextensible, uuid(5cdf2c82-841e-4546-9722-0cf74078229a), local, object]interface IAudioEndpointVolume : IUnknown{ HRESULT RegisterControlChangeNotify( [in] IAudioEndpointVolumeCallback *pNotify ); HRESULT UnregisterControlChangeNotify( [in] IAudioEndpointVolumeCallback *pNotify ); HRESULT GetChannelCount( [out] UINT *pnChannelCount ); HRESULT SetMasterVolumeLevel( [in] FLOAT fLevelDB, [unique,in] LPCGUID pguidEventContext ); HRESULT SetMasterVolumeLevelScalar( [in] FLOAT fLevel, [unique,in] LPCGUID pguidEventContext ); HRESULT GetMasterVolumeLevel( [out] FLOAT *fLevelDB ); HRESULT GetMasterVolumeLevelScalar( [out] FLOAT *fLevel ); HRESULT SetChannelVolumeLevel( [in] UINT nChannel, [in] FLOAT fLevelDB, [unique,in] LPCGUID pguidEventContext ); HRESULT SetChannelVolumeLevelScalar( [in] UINT nChannel, [in] FLOAT fLevel, [unique,in] LPCGUID pguidEventContext ); HRESULT GetChannelVolumeLevel( [in] UINT nChannel, [out] FLOAT *fLevelDB ); HRESULT GetChannelVolumeLevelScalar( [in] UINT nChannel, [out] FLOAT *fLevel ); HRESULT SetMute( [in] BOOL bMute, [unique,in] LPCGUID pguidEventContext ); HRESULT GetMute( [out] BOOL *bMute ); HRESULT GetVolumeStepInfo( [out] UINT *pnStep, [out] UINT *pnStepCount ); HRESULT VolumeStepUp( [unique,in] LPCGUID pguidEventContext ); HRESULT VolumeStepDown( [unique,in] LPCGUID pguidEventContext ); HRESULT QueryHardwareSupport( [out] DWORD *pdwHardwareSupportMask ); HRESULT GetVolumeRange( [out] FLOAT *pflVolumeMindB, [out] FLOAT *pflVolumeMaxdB, [out] FLOAT *pflVolumeIncrementdB );}[ pointer_default(unique), nonextensible, uuid(66e11784-f695-4f28-a505-a7080081a78f), local, object]interface IAudioEndpointVolumeEx : IAudioEndpointVolume{ HRESULT GetVolumeRangeChannel( [in] UINT iChannel, [out] FLOAT *pflVolumeMindB, [out] FLOAT *pflVolumeMaxdB, [out] FLOAT *pflVolumeIncrementdB );}