Question

Is there any way to access all WiFi access points and their respective RSSI values using .NET? It would be really nice if I could do it without using unmanaged code or even better if it worked in mono as well as .NET.

If it is possible i would appriciate a code sample. Thanks

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Here are a few similiar stackoverflow questions i found:

–Get SSID of the wireless network I am connected to with C# .Net on Windows Vista

–Managing wireless network connection in C#

–Get BSSID (MAC address) of wireless access point from C#

Answer 1

It is a wrapper project with managed code in c# at http://www.codeplex.com/managedwifi

It supports Windows Vista and XP SP2 (or later version).

sample code:

using NativeWifi; using System; using System.Text;  namespace WifiExample {     class Program     {         /// <summary>         /// Converts a 802.11 SSID to a string.         /// </summary>         static string GetStringForSSID(Wlan.Dot11Ssid ssid)         {             return Encoding.ASCII.GetString( ssid.SSID, 0, (int) ssid.SSIDLength );         }          static void Main( string[] args )         {             WlanClient client = new WlanClient();             foreach ( WlanClient.WlanInterface wlanIface in client.Interfaces )             {                 // Lists all networks with WEP security                 Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList( 0 );                 foreach ( Wlan.WlanAvailableNetwork network in networks )                 {                     if ( network.dot11DefaultCipherAlgorithm == Wlan.Dot11CipherAlgorithm.WEP )                     {                         Console.WriteLine( 'Found WEP network with SSID {0}.', GetStringForSSID(network.dot11Ssid));                     }                 }                  // Retrieves XML configurations of existing profiles.                 // This can assist you in constructing your own XML configuration                 // (that is, it will give you an example to follow).                 foreach ( Wlan.WlanProfileInfo profileInfo in wlanIface.GetProfiles() )                 {                     string name = profileInfo.profileName; // this is typically the network's SSID                      string xml = wlanIface.GetProfileXml( profileInfo.profileName );                 }                  // Connects to a known network with WEP security                 string profileName = 'Cheesecake'; // this is also the SSID                 string mac = '52544131303235572D454137443638';                 string key = 'hello';                 string profileXml = string.Format('<?xml version=\'1.0\'?><WLANProfile xmlns=\'http://www.microsoft.com/networking/WLAN/profile/v1\'><name>{0}</name><SSIDConfig><SSID><hex>{1}</hex><name>{0}</name></SSID></SSIDConfig><connectionType>ESS</connectionType><MSM><security><authEncryption><authentication>open</authentication><encryption>WEP</encryption><useOneX>false</useOneX></authEncryption><sharedKey><keyType>networkKey</keyType><protected>false</protected><keyMaterial>{2}</keyMaterial></sharedKey><keyIndex>0</keyIndex></security></MSM></WLANProfile>', profileName, mac, key);                  wlanIface.SetProfile( Wlan.WlanProfileFlags.AllUser, profileXml, true );                 wlanIface.Connect( Wlan.WlanConnectionMode.Profile, Wlan.Dot11BssType.Any, profileName );             }         }     } }