来自 Windows.Devices.Enumeration.DeviceInformation 的 COM 端口号 [英] COM port number from Windows.Devices.Enumeration.DeviceInformation

问题描述

有没有办法通过DeviceInformation获取设备的COM端口号?可以通过设备管理器查看 COM 端口号.

Is there a way to get the COM port number for a device through DeviceInformation? I can see COM port numbers when I look at them through Device Manager.

我刚遇到几个设备，它们没有将 COM 端口号列为 Name 属性的一部分.我插入了其中的两个，无法区分它们.理想情况下，我希望看到一个 COM 端口.有没有其他方法可以获取这些信息?

I just ran into a couple of devices that don't list the COM port number as part of the Name property. I plugged two of them in and there's no way to distinguish them from each other. Ideally, I'd like to see a COM port. Is there a different way to get that information?

string _serialSelector = SerialDevice.GetDeviceSelector();
DeviceInformationCollection tempInfo = await DeviceInformation.FindAllAsync(_serialSelector);
    if (tempInfo.Count > 0)
    {
        foreach (var efefe in tempInfo)
        {
            if (efefe.Kind.Equals(DeviceInformationKind.DeviceInterface))
            {
                //efefe.Name                     
            }
        }
    }

推荐答案

你已经完成了大部分工作，那么你需要使用你的 efefe 的 id 来获取 SerialDevice 对象使用 SerialDevice.FromIdAsync |fromIdAsync 方法.

You've done most of the job, then you will need to use your efefe's id to get the SerialDevice object using SerialDevice.FromIdAsync | fromIdAsync method.

这是演示:

string _serialSelector = SerialDevice.GetDeviceSelector();
var infos = await DeviceInformation.FindAllAsync(_serialSelector);
foreach (var info in infos)
{
    var serialDevice = await SerialDevice.FromIdAsync(info.Id);
    if (serialDevice != null)
    {
        var port = serialDevice.PortName;
        Debug.WriteLine(port.ToString());
    }
}

并且请不要忘记在清单中添加DeviceCapability:

And please don't forget to add DeviceCapability in manifest:

<DeviceCapability Name="serialcommunication">
  <Device Id="any">
    <Function Type="name:serialPort" />
  </Device>
</DeviceCapability>

这篇关于来自 Windows.Devices.Enumeration.DeviceInformation 的 COM 端口号的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！