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C# 为什么HingeAngleSensor.GetDefaultAsync总是返回null,即使我有铰链传感器?_C#_Wpf_Null_Sensors - Fatal编程技术网

C# 为什么HingeAngleSensor.GetDefaultAsync总是返回null,即使我有铰链传感器?

C# 为什么HingeAngleSensor.GetDefaultAsync总是返回null,即使我有铰链传感器?,c#,wpf,null,sensors,C#,Wpf,Null,Sensors,基于我的intel sensor viewer,我的笔记本电脑配有铰链传感器,包括角度数据。我需要获取角度并使用WPF显示它,但我的代码总是返回null 我也读过关于windows的HingeSensor API,但我是新手。 public MainWindow() { InitializeComponent(); Default(); } private async void Default() { var getDefaultHinge = await HingeAn

基于我的intel sensor viewer,我的笔记本电脑配有铰链传感器,包括角度数据。我需要获取角度并使用WPF显示它,但我的代码总是返回null

我也读过关于windows的HingeSensor API,但我是新手。

public MainWindow()
{
    InitializeComponent();
    Default();
}

private async void Default()
{
  var getDefaultHinge = await HingeAngleSensor.GetDefaultAsync();
  if (getDefaultHinge != null)
    {
         var defaultHingeAngle = hingeAngleReading.AngleInDegrees;
         angleReading.Content = defaultHingeAngle;
    }
    else
    {
         MessageBox.Show("no hinge sensor detected");
    }
}