1 | /* $Id: DrvHostAudioDSoundMMNotifClient.h 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * Host audio driver - DSound - Implementation of the IMMNotificationClient interface to detect audio endpoint changes.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2017-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | #ifndef VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h
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29 | #define VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h
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30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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31 | # pragma once
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32 | #endif
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33 |
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34 | #include <iprt/critsect.h>
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35 | #include <iprt/win/windows.h>
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36 | #include <mmdeviceapi.h>
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37 |
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38 | #include <VBox/vmm/pdmaudioifs.h>
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39 |
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40 |
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41 | class DrvHostAudioDSoundMMNotifClient : public IMMNotificationClient
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42 | {
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43 | public:
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44 |
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45 | DrvHostAudioDSoundMMNotifClient(PPDMIHOSTAUDIOPORT pInterface, bool fDefaultIn, bool fDefaultOut);
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46 | virtual ~DrvHostAudioDSoundMMNotifClient();
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47 |
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48 | HRESULT Initialize();
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49 |
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50 | HRESULT Register(void);
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51 | void Unregister(void);
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52 |
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53 | /** @name IUnknown interface
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54 | * @{ */
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55 | IFACEMETHODIMP_(ULONG) Release();
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56 | /** @} */
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57 |
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58 | private:
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59 |
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60 | bool m_fDefaultIn;
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61 | bool m_fDefaultOut;
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62 | bool m_fRegisteredClient;
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63 | IMMDeviceEnumerator *m_pEnum;
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64 | IMMDevice *m_pEndpoint;
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65 |
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66 | long m_cRef;
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67 |
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68 | PPDMIHOSTAUDIOPORT m_pIAudioNotifyFromHost;
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69 |
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70 | /** @name IMMNotificationClient interface
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71 | * @{ */
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72 | IFACEMETHODIMP OnDeviceStateChanged(LPCWSTR pwstrDeviceId, DWORD dwNewState);
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73 | IFACEMETHODIMP OnDeviceAdded(LPCWSTR pwstrDeviceId);
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74 | IFACEMETHODIMP OnDeviceRemoved(LPCWSTR pwstrDeviceId);
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75 | IFACEMETHODIMP OnDefaultDeviceChanged(EDataFlow flow, ERole role, LPCWSTR pwstrDefaultDeviceId);
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76 | IFACEMETHODIMP OnPropertyValueChanged(LPCWSTR /*pwstrDeviceId*/, const PROPERTYKEY /*key*/) { return S_OK; }
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77 | /** @} */
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78 |
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79 | /** @name IUnknown interface
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80 | * @{ */
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81 | IFACEMETHODIMP QueryInterface(const IID& iid, void** ppUnk);
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82 | IFACEMETHODIMP_(ULONG) AddRef();
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83 | /** @} */
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84 | };
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85 |
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86 | #endif /* !VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h */
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87 |
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