/*
  ==============================================================================

   This file is part of the JUCE framework.
   Copyright (c) Raw Material Software Limited

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

//==============================================================================
/**
    Contains functions to control the system's master volume.

    @tags{Audio}
*/
class JUCE_API  SystemAudioVolume
{
public:
    //==============================================================================
    /** Returns the operating system's current volume level in the range 0 to 1.0 */
    static float JUCE_CALLTYPE getGain();

    /** Attempts to set the operating system's current volume level.
        @param newGain  the level, between 0 and 1.0
        @returns true if the operation succeeds
    */
    static bool JUCE_CALLTYPE setGain (float newGain);

    /** Returns true if the system's audio output is currently muted. */
    static bool JUCE_CALLTYPE isMuted();

    /** Attempts to mute the operating system's audio output.
        @param shouldBeMuted    true if you want it to be muted
        @returns true if the operation succeeds
    */
    static bool JUCE_CALLTYPE setMuted (bool shouldBeMuted);

private:
    SystemAudioVolume(); // Don't instantiate this class, just call its static fns.
    JUCE_DECLARE_NON_COPYABLE (SystemAudioVolume)
};

} // namespace juce
