Radio State of Wi-Fi Interface

.gitignore

@@ -8,6 +8,9 @@ TestResults
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 
+# Visual Studio 2015 cache/options directory
+.vs/
+
 # User-specific files
 *.suo
 *.user

SimpleWifi/Win32/Interop/Enums.cs

@@ -1,7 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System.Runtime.InteropServices;
 
 namespace SimpleWifi.Win32.Interop
 {
@@ -823,7 +821,57 @@ public enum Dot11OperationMode : uint
 		NetworkMonitor = 0x80000000
 	}
 
-
+	/// <summary>
+	/// Defines the radio state of a wireless connection.
+	/// </summary>
+	/// <remarks>
+	/// Corresponds to the native <c>DOT11_RADIO_STATE</c> enumeration.
+	/// </remarks>
+	public enum Dot11RadioState : uint
+	{
+		Unknown = 0,
+		On,
+		Off
+	}
+
+	/// <summary>
+	/// Defines the radio state attributes for a wireless connection.
+	/// </summary>
+	/// <remarks>
+	/// Corresponds to the native <c>WLAN_PHY_RADIO_STATE</c> structure.
+	/// </remarks>
+	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+	public struct WlanPhyRadioState
+	{
+		public int dwPhyIndex;
+		public Dot11RadioState dot11SoftwareRadioState;
+		public Dot11RadioState dot11HardwareRadioState;
+	}
+
+	/// <summary>
+	/// Defines the radio state attributes for a wireless connection.
+	/// </summary>
+	/// <remarks>
+	/// Corresponds to the native <c>WLAN_RADIO_STATE</c> type.
+	/// </remarks>
+	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+	public struct WlanRadioState
+	{
+		public int numberofItems;
+
+		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 64)]
+		private WlanPhyRadioState[] phyRadioState;
+		public WlanPhyRadioState[] PhyRadioState
+		{
+			get
+			{
+				WlanPhyRadioState[] ret = new WlanPhyRadioState[numberofItems];
+				Array.Copy(phyRadioState, ret, numberofItems);
+				return ret;
+			}
+		}
+	}
+
 	/// <summary>
 	/// A set of flags that modify the behavior of the function: WlanSetProfileEapUserData
 	/// 

SimpleWifi/Win32/WlanInterface.cs

@@ -1,11 +1,9 @@
-using SimpleWifi.Win32.Interop;
-using System;
+using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Net.NetworkInformation;
 using System.Runtime.InteropServices;
-using System.Text;
 using System.Threading;
+using SimpleWifi.Win32.Interop;
 
 namespace SimpleWifi.Win32
 {
@@ -185,6 +183,31 @@ public int RSSI
 			}
 		}
 
+		/// <summary>
+		/// Gets the radio state.
+		/// </summary>
+		/// <value>The radio state.</value>
+		/// <remarks>Not supported on Windows XP.</remarks>
+		public WlanRadioState RadioState
+		{
+			get
+			{
+				int valueSize;
+				IntPtr valuePtr;
+				WlanOpcodeValueType opcodeValueType;
+				WlanInterop.ThrowIfError(WlanInterop.WlanQueryInterface(client.clientHandle, info.interfaceGuid, WlanIntfOpcode.RadioState, IntPtr.Zero, out valueSize, out valuePtr, out opcodeValueType));
+
+				try
+				{
+					return (WlanRadioState) Marshal.PtrToStructure(valuePtr, typeof(WlanRadioState));
+				}
+				finally
+				{
+					WlanInterop.WlanFreeMemory(valuePtr);
+				}
+			}
+		}
+
 		/// <summary>
 		/// Gets the current operation mode.
 		/// </summary>