60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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Contains functions to control the system's master volume.
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@tags{Audio}
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*/
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class JUCE_API SystemAudioVolume
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{
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public:
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//==============================================================================
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/** Returns the operating system's current volume level in the range 0 to 1.0 */
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static float JUCE_CALLTYPE getGain();
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/** Attempts to set the operating system's current volume level.
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@param newGain the level, between 0 and 1.0
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@returns true if the operation succeeds
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*/
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static bool JUCE_CALLTYPE setGain (float newGain);
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/** Returns true if the system's audio output is currently muted. */
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static bool JUCE_CALLTYPE isMuted();
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/** Attempts to mute the operating system's audio output.
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@param shouldBeMuted true if you want it to be muted
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@returns true if the operation succeeds
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*/
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static bool JUCE_CALLTYPE setMuted (bool shouldBeMuted);
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private:
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SystemAudioVolume(); // Don't instantiate this class, just call its static fns.
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JUCE_DECLARE_NON_COPYABLE (SystemAudioVolume)
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};
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} // namespace juce
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