// Copyright © 2010-2016 The CefSharp Authors. All rights reserved.

//

// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.

using System;

using System.ComponentModel;

using System.Runtime.InteropServices;

namespace CefSharp.Example.Proxy

{

public class ProxyConfig

{

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]

private static extern bool InternetQueryOption(IntPtr hInternet, uint dwOption, IntPtr lpBuffer, ref int lpdwBufferLength);

private const uint InternetOptionProxy = 38;

public static InternetProxyInfo GetProxyInformation()

{

var bufferLength = 0;

InternetQueryOption(IntPtr.Zero, InternetOptionProxy, IntPtr.Zero, ref bufferLength);

var buffer = IntPtr.Zero;

try

{

buffer = Marshal.AllocHGlobal(bufferLength);

if (InternetQueryOption(IntPtr.Zero, InternetOptionProxy, buffer, ref bufferLength))

{

var ipi = (InternetProxyInfo)Marshal.PtrToStructure(buffer, typeof(InternetProxyInfo));

return ipi;

}

{

throw new Win32Exception();

}

}

finally

{

if (buffer != IntPtr.Zero)

{

Marshal.FreeHGlobal(buffer);

}

}

}

}

}