QT adjust win screen brightness and sound size

One . Preface

Recent projects need , Specially learned , How to use Qt To write a gadget , It can be adjusted conveniently , The brightness of the computer screen and the size of the sound ( It can prevent these two keys on the computer from breaking , spare ).
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                       QT Adjust screen brightness and sound level 			

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Two . Interface effect

Here as a demo Share with you ,Qt There are no self-contained adjustment functions , Need to adjust Win Provided API. Then you need an open source library to adjust the brightness of the screen .
Project file structure , What is marked out is an open source library , It can be easily used to adjust the brightness of the screen

The core code is also very simple , You can beautify the interface according to your own needs . If you have questions, you can chat with me in private .

 /* Modify according to the value of the slider Win10 The volume of */
    connect(ui->horizontalSlider,&QSlider::valueChanged,this,[=](int value)
    {
    
         volume.SetSystemVolume(value);
    });

    /* According to the key , To mute or unmute */
    connect(ui->pushButton,&QPushButton::clicked,this,[=]()
    {
    
        if(flagVolume == 1)
        {
    
            volume.SetSystemVolume(-1);
            flagVolume = 0;
        }
        else
        {
    
            volume.SetSystemVolume(-2);
            flagVolume = 1;
        }

    });

    /* Modify according to the value of the slider Win10 The brightness of */
    connect(ui->horizontalSlider_2,&QSlider::valueChanged,this,[=](int value)
    {
    
         screen.SetScreenBrightness(value);
    });