通过C＃设置IE代理
您好我想使用C＃程序设置IE代理，因为WebProxy类已经获得代理方法。但是没有方法可以设置它！
以下是谷歌搜索发现的一些替代方案：
1- GlobalProxySelection
这是来自http://www.hccp.org/csharp-http-proxy.html
示例代码：
System.Net.Uri proxyURI = new System.Net.Uri("http://64.202.165.130:3128"); System.Net.GlobalProxySelection.Select = new System.Net.WebProxy(proxyURI); 2-关于StackOverflow的另一个讨论：以编程方式在C＃中设置浏览器代理设置
如果您只想为您的应用设置代理，请阅读它。
对于全球变化，建议查看： http ： //msdn.microsoft.com/en-us/library/aa384113.aspx
示例代码：
WINHTTP_PROXY_INFO proxyInfo; // Allocate memory for string members. proxyInfo.lpszProxy = new WCHAR[25]; proxyInfo.lpszProxyBypass = new WCHAR[25]; // Set the members of the proxy info structure. proxyInfo.dwAccessType = WINHTTP_ACCESS_TYPE_NAMED_PROXY; swprintf_s(proxyInfo.lpszProxy, 25, L"proxy_server"); swprintf_s(proxyInfo.lpszProxyBypass, 25, L""); // Set the default proxy configuration. if (WinHttpSetDefaultProxyConfiguration( &proxyInfo )) printf("Proxy Configuration Set.\n"); // Free memory allocated to the strings. delete [] proxyInfo.lpszProxy; delete [] proxyInfo.lpszProxyBypass;
3-使用本机代码
这是来自http://huddledmasses.org/setting-windows-internet-connection-proxy-from-c/
示例代码：
using System; using System.Runtime.InteropServices; using System.ComponentModel; namespace PoshHttp { public class Proxies { public static bool UnsetProxy() { return SetProxy(null, null); } public static bool SetProxy(string strProxy) { return SetProxy(strProxy, null); } public static bool SetProxy(string strProxy, string exceptions) { InternetPerConnOptionList list = new InternetPerConnOptionList(); int optionCount = string.IsNullOrEmpty(strProxy) ? 1 : (string.IsNullOrEmpty(exceptions) ? 2 : 3); InternetConnectionOption[] options = new InternetConnectionOption[optionCount]; // USE a proxy server ... options[0].m_Option = PerConnOption.INTERNET_PER_CONN_FLAGS; options[0].m_Value.m_Int = (int)((optionCount < 2) ? PerConnFlags.PROXY_TYPE_DIRECT : (PerConnFlags.PROXY_TYPE_DIRECT | PerConnFlags.PROXY_TYPE_PROXY)); // use THIS proxy server if (optionCount > 1) { options[1].m_Option = PerConnOption.INTERNET_PER_CONN_PROXY_SERVER; options[1].m_Value.m_StringPtr = Marshal.StringToHGlobalAuto(strProxy); // except for these addresses ... if (optionCount > 2) { options[2].m_Option = PerConnOption.INTERNET_PER_CONN_PROXY_BYPASS; options[2].m_Value.m_StringPtr = Marshal.StringToHGlobalAuto(exceptions); } } // default stuff list.dwSize = Marshal.SizeOf(list); list.szConnection = IntPtr.Zero; list.dwOptionCount = options.Length; list.dwOptionError = 0; int optSize = Marshal.SizeOf(typeof(InternetConnectionOption)); // make a pointer out of all that ... IntPtr optionsPtr = Marshal.AllocCoTaskMem(optSize * options.Length); // copy the array over into that spot in memory ... for (int i = 0; i < options.Length; ++i) { IntPtr opt = new IntPtr(optionsPtr.ToInt32() + (i * optSize)); Marshal.StructureToPtr(options[i], opt, false); } list.options = optionsPtr; // and then make a pointer out of the whole list IntPtr ipcoListPtr = Marshal.AllocCoTaskMem((Int32)list.dwSize); Marshal.StructureToPtr(list, ipcoListPtr, false); // and finally, call the API method! int returnvalue = NativeMethods.InternetSetOption(IntPtr.Zero, InternetOption.INTERNET_OPTION_PER_CONNECTION_OPTION, ipcoListPtr, list.dwSize) ? -1 : 0; if (returnvalue == 0) { // get the error codes, they might be helpful returnvalue = Marshal.GetLastWin32Error(); } // FREE the data ASAP Marshal.FreeCoTaskMem(optionsPtr); Marshal.FreeCoTaskMem(ipcoListPtr); if (returnvalue > 0) { // throw the error codes, they might be helpful throw new Win32Exception(Marshal.GetLastWin32Error()); } return (returnvalue < 0); } } #region WinInet structures [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct InternetPerConnOptionList { public int dwSize; // size of the INTERNET_PER_CONN_OPTION_LIST struct public IntPtr szConnection; // connection name to set/query options public int dwOptionCount; // number of options to set/query public int dwOptionError; // on error, which option failed //[MarshalAs(UnmanagedType.)] public IntPtr options; }; [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct InternetConnectionOption { static readonly int Size; public PerConnOption m_Option; public InternetConnectionOptionValue m_Value; static InternetConnectionOption() { InternetConnectionOption.Size = Marshal.SizeOf(typeof(InternetConnectionOption)); } // Nested Types [StructLayout(LayoutKind.Explicit)] public struct InternetConnectionOptionValue { // Fields [FieldOffset(0)] public System.Runtime.InteropServices.ComTypes.FILETIME m_FileTime; [FieldOffset(0)] public int m_Int; [FieldOffset(0)] public IntPtr m_StringPtr; } } #endregion #region WinInet enums // // options manifests for Internet{Query|Set}Option // public enum InternetOption : uint { INTERNET_OPTION_PER_CONNECTION_OPTION = 75 } // // Options used in INTERNET_PER_CONN_OPTON struct // public enum PerConnOption { INTERNET_PER_CONN_FLAGS = 1, // Sets or retrieves the connection type. The Value member will contain one or more of the values from PerConnFlags INTERNET_PER_CONN_PROXY_SERVER = 2, // Sets or retrieves a string containing the proxy servers. INTERNET_PER_CONN_PROXY_BYPASS = 3, // Sets or retrieves a string containing the URLs that do not use the proxy server. INTERNET_PER_CONN_AUTOCONFIG_URL = 4//, // Sets or retrieves a string containing the URL to the automatic configuration script. } // // PER_CONN_FLAGS // [Flags] public enum PerConnFlags { PROXY_TYPE_DIRECT = 0x00000001, // direct to net PROXY_TYPE_PROXY = 0x00000002, // via named proxy PROXY_TYPE_AUTO_PROXY_URL = 0x00000004, // autoproxy URL PROXY_TYPE_AUTO_DETECT = 0x00000008 // use autoproxy detection } #endregion internal static class NativeMethods { [DllImport("WinInet.dll", SetLastError = true, CharSet = CharSet.Auto)] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool InternetSetOption(IntPtr hInternet, InternetOption dwOption, IntPtr lpBuffer, int dwBufferLength); } }
请查看链接本身以获取详细信息和解决方案的完整部分。