include/audiopolicy.idl

   1 /*
   2  * Core Audio audio policy definitions
   3  *
   4  * Copyright 2009 Maarten Lankhorst
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 import "oaidl.idl";
  23 import "ocidl.idl";
  24 import "propidl.idl";
  25 import "audiosessiontypes.h";
  26 import "audioclient.idl";
  27
  28 interface IAudioSessionEvents;
  29 interface IAudioSessionControl;
  30 interface IAudioSessionControl2;
  31 interface IAudioSessionManager;
  32 interface IAudioVolumeDuckNotification;
  33 interface IAudioSessionNotification;
  34 interface IAudioSessionEnumerator;
  35 interface IAudioSessionManager2;
  36
  37 typedef enum AudioSessionDisconnectReason /*[local]*/
  38 {
  39     DisconnectReasonDeviceRemoval = 0,
  40     DisconnectReasonServerShutdown,
  41     DisconnectReasonFormatChanged,
  42     DisconnectReasonSessionLogoff,
  43     DisconnectReasonSessionDisconnected,
  44     DisconnectReasonExclusiveModeOverride,
  45 } AudioSessionDisconnectReason;
  46
  47 [
  48     local,
  49     uuid(24918acc-64b3-37c1-8ca9-74a66e9957a8),
  50     pointer_default(unique),
  51     object
  52 ]
  53 interface IAudioSessionEvents : IUnknown
  54 {
  55     HRESULT OnDisplayNameChanged(
  56         [string,in] LPCWSTR NewDisplayName,
  57         [in] LPCGUID EventContext
  58     );
  59     HRESULT OnIconPathChanged(
  60         [string,in] LPCWSTR NewIconPath,
  61         [in] LPCGUID EventContext
  62     );
  63     HRESULT OnSimpleVolumeChanged(
  64         [in] float NewVolume,
  65         [in] BOOL NewMute,
  66         [in] LPCGUID EventContext
  67     );
  68     HRESULT OnChannelVolumeChanged(
  69         [in] DWORD ChannelCount,
  70         [size_is(ChannelCount),in] float *NewChannelVolumeArray,
  71         [in] DWORD ChangedChannel,
  72         [in] LPCGUID EventContext
  73     );
  74     HRESULT OnGroupingParamChanged(
  75         [in] LPCGUID NewGroupingParam,
  76         [in] LPCGUID EventContext
  77     );
  78     HRESULT OnStateChanged(
  79         [in] AudioSessionState NewState
  80     );
  81     HRESULT OnSessionDisconnected(
  82         [in] AudioSessionDisconnectReason DisconnectReason
  83     );
  84 }
  85
  86 [
  87     local,
  88     uuid(f4b1a599-7266-4319-a8ca-e70acb11e8cd),
  89     pointer_default(unique),
  90     object
  91 ]
  92 interface IAudioSessionControl : IUnknown
  93 {
  94     HRESULT GetState(
  95         [out] AudioSessionState *pRetVal
  96     );
  97     HRESULT GetDisplayName(
  98         [string,out] LPWSTR *pRetVal
  99     );
 100     HRESULT SetDisplayName(
 101         [string,in] LPCWSTR DisplayName,
 102         [unique,in] LPCGUID EventContext
 103     );
 104     HRESULT GetIconPath(
 105         [string,out] LPWSTR *pRetVal
 106     );
 107     HRESULT SetIconPath(
 108         [string,in] LPCWSTR Value,
 109         [unique,in] LPCGUID EventContext
 110     );
 111     HRESULT GetGroupingParam(
 112         [out] GUID *pRetVal
 113     );
 114     HRESULT SetGroupingParam(
 115         [in] LPCGUID Override,
 116         [unique,in] LPCGUID EventContext
 117     );
 118     HRESULT RegisterAudioSessionNotification(
 119         [in] IAudioSessionEvents *NewNotifications
 120     );
 121     HRESULT UnregisterAudioSessionNotification(
 122         [in] IAudioSessionEvents *NewNotifications
 123     );
 124 }
 125
 126 [
 127     local,
 128     uuid(bfb7ff88-7239-4fc9-8fa2-07c950be9c6d),
 129     pointer_default(unique),
 130     object
 131 ]
 132 interface IAudioSessionControl2 : IAudioSessionControl
 133 {
 134     HRESULT GetSessionIdentifier(
 135         [string,out] LPWSTR *pRetVal
 136     );
 137     HRESULT GetSessionInstanceIdentifier(
 138         [string,out] LPWSTR *pRetVal
 139     );
 140     HRESULT GetProcessId(
 141         [out] DWORD *pRetVal
 142     );
 143     HRESULT IsSystemSoundsSession(void);
 144     HRESULT SetDuckingPreferences(
 145         [in] BOOL optOut
 146     );
 147 };
 148
 149 [
 150     local,
 151     uuid(bfa971f1-4d5e-40bb-935e-967039bfbee4),
 152     pointer_default(unique),
 153     object
 154 ]
 155 interface IAudioSessionManager : IUnknown
 156 {
 157     HRESULT GetAudioSessionControl(
 158         [in] LPCGUID AudioSessionGuid,
 159         [in] DWORD StreamFlags,
 160         [out] IAudioSessionControl **SessionControl
 161     );
 162     HRESULT GetSimpleAudioVolume(
 163         [in] LPCGUID AudioSessionGuid,
 164         [in] DWORD StreamFlags,
 165         [out] ISimpleAudioVolume **AudioVolume
 166     );
 167 };
 168
 169 [
 170     local,
 171     uuid(c3b284d4-6d39-4359-b3cf-b56ddb3bb39c),
 172     pointer_default(unique),
 173     object
 174 ]
 175 interface IAudioVolumeDuckNotification : IUnknown
 176 {
 177     HRESULT OnVolumeDuckNotification(
 178         [in] LPCWSTR sessionID,
 179         [in] UINT32 countCommunicationSessions
 180     );
 181     HRESULT OnVolumeUnduckNotification(
 182         [in] LPCWSTR sessionID
 183     );
 184 };
 185
 186 [
 187     local,
 188     uuid(641dd20b-4d41-49cc-aba3-174b9477bb08),
 189     pointer_default(unique),
 190     object
 191 ]
 192 interface IAudioSessionNotification : IUnknown
 193 {
 194     HRESULT OnSessionCreated(
 195         [in] IAudioSessionControl *NewSession
 196     );
 197 };
 198
 199 [
 200     local,
 201     uuid(e2f5bb11-0570-40ca-acdd-3aa01277dee8),
 202     pointer_default(unique),
 203     object
 204 ]
 205 interface IAudioSessionEnumerator : IUnknown
 206 {
 207     HRESULT GetCount(
 208         [out] INT *SessionCount
 209     );
 210     HRESULT GetSession(
 211         [in] INT SessionCount,
 212         [out] IAudioSessionControl **Session
 213     );
 214 };
 215
 216 [
 217     local,
 218     uuid(77aa99a0-1bd6-484f-8bc7-2c654c9a9b6f),
 219     pointer_default(unique),
 220     object
 221 ]
 222 interface IAudioSessionManager2 : IAudioSessionManager
 223 {
 224     HRESULT GetSessionEnumerator(
 225         [retval,out] IAudioSessionEnumerator **SessionEnum
 226     );
 227     HRESULT RegisterSessionNotification(
 228         [in] IAudioSessionNotification *SessionNotification
 229     );
 230     HRESULT UnregisterSessionNotification(
 231         [in] IAudioSessionNotification *SessionNotification
 232     );
 233     HRESULT RegisterDuckNotification(
 234         [string,in] LPCWSTR sessionID,
 235         [in] IAudioVolumeDuckNotification *duckNotification
 236     );
 237     HRESULT UnregisterDuckNotification(
 238         [in] IAudioVolumeDuckNotification *duckNotification
 239     );
 240 };