如何修复VS2013:错误:找不到类型或命名空间“Windows”

本文关键字：命名空间 Windows 找不到何修复 VS2013 错误类型 | 更新日期: 2023-09-27 18:31:18

我想为Wifi Direct创建一个服务。如果我尝试添加引用，我在VS2013中看不到核心>窗口选项。我已经更新了winSDK。如何添加 Windows.Devices.WifiDirect api？

您可以使用

public sealed class WiFiDirectDevice : IDisposable

这是处理连接的示例代码

   Windows.Devices.WiFiDirect.WiFiDirectDevice wfdDevice;
private async System.Threading.Tasks.Task<String> Connect(string deviceId)
{
    string result = ""; 
    try
    {
        // No device Id specified.
        if (String.IsNullOrEmpty(deviceId)) { return "Please specify a Wi- Fi Direct device Id."; }
        // Connect to the selected Wi-Fi Direct device.
        wfdDevice = await Windows.Devices.WiFiDirect.WiFiDirectDevice.FromIdAsync(deviceId);
        if (wfdDevice == null)
        {
            result = "Connection to " + deviceId + " failed.";
        }
        // Register for connection status change notification.
        wfdDevice.ConnectionStatusChanged += new TypedEventHandler<Windows.Devices.WiFiDirect.WiFiDirectDevice, object>(OnConnectionChanged);
        // Get the EndpointPair information.
        var EndpointPairCollection = wfdDevice.GetConnectionEndpointPairs();
        if (EndpointPairCollection.Count > 0)
        {
            var endpointPair = EndpointPairCollection[0];
            result = "Local IP address " + endpointPair.LocalHostName.ToString() + 
                " connected to remote IP address " + endpointPair.RemoteHostName.ToString();
        }
        else
        {
           result = "Connection to " + deviceId + " failed.";
        }
    }
    catch (Exception err)
    {
        // Handle error.
        result = "Error occurred: " + err.Message;
    }
    return result;
}
private void OnConnectionChanged(object sender, object arg)
{
    Windows.Devices.WiFiDirect.WiFiDirectConnectionStatus status = 
        (Windows.Devices.WiFiDirect.WiFiDirectConnectionStatus)arg;
    if (status == Windows.Devices.WiFiDirect.WiFiDirectConnectionStatus.Connected)
    {
        // Connection successful.
    }
    else
    {
        // Disconnected.
        Disconnect();
    }
}
private void Disconnect()
{
    if (wfdDevice != null) 
    {
        wfdDevice.Dispose(); 
    }
}