在UWP中获取AP使用的WiFi信道带宽,可以通过以下步骤实现:
需要注意的是,UWP应用需要在应用清单文件中声明网络访问权限,以便获取WiFi网络信息。以下是一个示例代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Windows.Devices.Enumeration;
using Windows.Devices.WiFi;
using Windows.Foundation;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
namespace UWPApp
{
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
GetWiFiChannelBandwidth();
}
private async void GetWiFiChannelBandwidth()
{
// 获取WiFi适配器
var access = await WiFiAdapter.RequestAccessAsync();
if (access == WiFiAccessStatus.Allowed)
{
var wifiAdapter = await WiFiAdapter.FromIdAsync(DeviceInformation.FindAllAsync(WiFiAdapter.GetDeviceSelector()).GetResults()[0].Id);
// 获取连接的WiFi网络
var connectedNetwork = wifiAdapter.NetworkReport.AvailableNetworks.FirstOrDefault(n => n.ConnectivityLevel == WiFiConnectivityLevel.Connected);
if (connectedNetwork != null)
{
// 获取信道信息
var channelInfo = await wifiAdapter.GetChannelCenterFrequencyInKilohertzAsync(connectedNetwork);
var channelBandwidth = GetChannelBandwidth(channelInfo.CenterFrequencyInKilohertz);
// 输出信道带宽
Console.WriteLine("WiFi信道带宽: " + channelBandwidth);
}
}
}
private string GetChannelBandwidth(uint centerFrequency)
{
// 根据中心频率判断信道带宽
if (centerFrequency >= 2412000 && centerFrequency <= 2484000)
{
return "2.4GHz";
}
else if (centerFrequency >= 5180000 && centerFrequency <= 5825000)
{
return "5GHz";
}
else
{
return "Unknown";
}
}
}
}
在上述示例代码中,通过WiFiAdapter类的GetChannelCenterFrequencyInKilohertzAsync方法获取到信道的中心频率,然后根据中心频率判断信道带宽是2.4GHz还是5GHz。最后,可以将信道带宽输出到控制台或者其他需要的地方。
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