97 lines
4.9 KiB
C++
97 lines
4.9 KiB
C++
/* Copyright: © Copyright 2003 Apple Computer, Inc. All rights reserved.
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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("Apple") in consideration of your agreement to the following terms, and your
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use, installation, modification or redistribution of this Apple software
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constitutes acceptance of these terms. If you do not agree with these terms,
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please do not use, install, modify or redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and subject
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to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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copyrights in this original Apple software (the "Apple Software"), to use,
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reproduce, modify and redistribute the Apple Software, with or without
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modifications, in source and/or binary forms; provided that if you redistribute
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the Apple Software in its entirety and without modifications, you must retain
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this notice and the following text and disclaimers in all such redistributions of
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the Apple Software. Neither the name, trademarks, service marks or logos of
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Apple Computer, Inc. may be used to endorse or promote products derived from the
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Apple Software without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or implied,
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are granted by Apple herein, including but not limited to any patent rights that
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may be infringed by your derivative works or by other works in which the Apple
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Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*=============================================================================
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CAAudioHardwareSystem.h
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=============================================================================*/
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#if !defined(__CAAudioHardwareSystem_h__)
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#define __CAAudioHardwareSystem_h__
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//=============================================================================
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// Includes
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//=============================================================================
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// System Includes
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#include <CoreFoundation/CoreFoundation.h>
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#include <CoreAudio/CoreAudio.h>
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//=============================================================================
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// CAAudioHardwareSystem
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//=============================================================================
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class CAAudioHardwareSystem
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{
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// Operations
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public:
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static UInt32 GetNumberDevices();
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static AudioDeviceID GetDeviceAtIndex(UInt32 inIndex);
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static UInt32 GetIndexForDevice(const AudioDeviceID inDevice);
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static AudioDeviceID GetDeviceForUID(CFStringRef inUID);
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static AudioDeviceID GetDefaultDevice(bool inIsInput, bool inIsSystem);
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static void SetDefaultDevice(bool inIsInput, bool inIsSystem, AudioDeviceID inDevice);
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static bool HasBootChimeVolumeControl();
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static Float32 GetBootChimeVolumeControlValueAsScalar();
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static Float32 GetBootChimeVolumeControlValueAsDB();
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static void GetBootChimeVolumeControlDBRange(Float32& outMinimum, Float32& outMaximum);
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static void SetBootChimeVolumeControlValueAsScalar(Float32 inScalarValue);
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static void SetBootChimeVolumeControlValueAsDB(Float32 inDBValue);
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static Float32 ConvertBootChimeVolumeControlScalarValueToDB(Float32 inScalarValue);
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static Float32 ConvertBootChimeVolumeControlDBValueToScalar(Float32 inDBValue);
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static bool AllowsIdleSleepDuringIO();
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static void SetAllowsIdleSleepDuringIO(bool inAllowIdleSleep);
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// Property Operations
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public:
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static bool HasProperty(AudioHardwarePropertyID inPropertyID);
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static bool PropertyIsSettable(AudioHardwarePropertyID inPropertyID);
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static UInt32 GetPropertyDataSize(AudioHardwarePropertyID inPropertyID);
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static void GetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32& ioDataSize, void* outData);
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static void SetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32 inDataSize, const void* inData);
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static void AddPropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc, void* inClientData);
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static void RemovePropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc);
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};
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#endif
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