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using Tango.WiFi.Win32.Interop;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
namespace Tango.WiFi.Win32.Helpers
{
internal static class WlanHelpers
{
internal static WlanConnectionNotificationData? ParseWlanConnectionNotification(ref WlanNotificationData notifyData)
{
int expectedSize = Marshal.SizeOf(typeof(WlanConnectionNotificationData));
if (notifyData.dataSize < expectedSize)
return null;
WlanConnectionNotificationData connNotifyData = (WlanConnectionNotificationData)Marshal.PtrToStructure(notifyData.dataPtr, typeof(WlanConnectionNotificationData));
if (connNotifyData.wlanReasonCode == WlanReasonCode.Success)
{
long profileXmlPtrValue = notifyData.dataPtr.ToInt64() + Marshal.OffsetOf(typeof(WlanConnectionNotificationData), "profileXml").ToInt64();
connNotifyData.profileXml = Marshal.PtrToStringUni(new IntPtr(profileXmlPtrValue));
}
return connNotifyData;
}
/// <summary>
/// Gets a string that describes a specified reason code. NOTE: Not used!
/// </summary>
/// <param name="reasonCode">The reason code.</param>
/// <returns>The string.</returns>
internal static string GetStringForReasonCode(WlanReasonCode reasonCode)
{
StringBuilder sb = new StringBuilder(1024); // the 1024 size here is arbitrary; the WlanReasonCodeToString docs fail to specify a recommended size
if (WlanInterop.WlanReasonCodeToString(reasonCode, sb.Capacity, sb, IntPtr.Zero) != 0)
{
sb.Clear(); // Not sure if we get junk in the stringbuilder buffer from WlanReasonCodeToString, clearing it to be sure.
sb.Append("Failed to retrieve reason code, probably too small buffer.");
}
return sb.ToString();
}
}
}
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