This article describes an All-In-One Code Framework sample that is available for download. The sample demonstrates how to make the WebBrowser control use a proxy server.
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In Internet Explorer 5 and later versions of Internet Explorer 5, Internet options can be set on a specific connection and process. For example, Internet options can be set on the LAN connection or on the ADSL connection. Wininet.dll component contains the following four extern methods to set and retrieve Internet settings:
/// <summary> /// Initialize an application's use of the WinINet functions. /// See /// </summary> [DllImport("wininet.dll", SetLastError = true, CharSet = CharSet.Auto)] internal static extern IntPtr InternetOpen( string lpszAgent, int dwAccessType, string lpszProxyName, string lpszProxyBypass, int dwFlags); /// <summary> /// Close a single Internet handle. /// </summary> [DllImport("wininet.dll", SetLastError = true)] [return: MarshalAs(UnmanagedType.Bool)] internal static extern bool InternetCloseHandle(IntPtr hInternet); /// <summary> /// Sets an Internet option. /// </summary> [DllImport("wininet.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal static extern bool InternetSetOption( IntPtr hInternet, INTERNET_OPTION dwOption, IntPtr lpBuffer, int lpdwBufferLength); /// <summary> /// Queries an Internet option on the specified handle. The Handle will be always 0. /// </summary> [DllImport("wininet.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal extern static bool InternetQueryOption( IntPtr hInternet, INTERNET_OPTION dwOption, ref INTERNET_PER_CONN_OPTION_LIST OptionList, ref int lpdwBufferLength);
This code sample is available in the following programming languages:
This sample application is developed by using Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.
For more information the InternetSetOption function, visit the following MSDN website:
All-In-One Code Framework shows most Microsoft development techniques by using code samples in different programming languages. Each example is carefully selected, composed, and documented to show one common code scenario. For more information about All-In-One Code Framework, visit the following Microsoft website:
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