我如何使用InternetSetOption？

这个问题：

使用代理与Web浏览器控制

告诉我使用“InternetSetOption”。 我该如何使用它？ 我如何在代码中实现它（例如？）？

谢谢！

Answer 1

public struct Struct_INTERNET_PROXY_INFO { public int dwAccessType; public IntPtr proxy; public IntPtr proxyBypass; } [DllImport("wininet.dll", SetLastError = true)] private static extern bool InternetSetOption( IntPtr hInternet, int dwOption, IntPtr lpBuffer, int lpdwBufferLength); private void RefreshIESettings(string strProxy) { const int INTERNET_OPTION_PROXY = 38; const int INTERNET_OPEN_TYPE_PROXY = 3; Struct_INTERNET_PROXY_INFO struct_IPI; struct_IPI.dwAccessType = INTERNET_OPEN_TYPE_PROXY; struct_IPI.proxy = Marshal.StringToHGlobalAnsi(strProxy); struct_IPI.proxyBypass = Marshal.StringToHGlobalAnsi("local"); IntPtr intptrStruct = Marshal.AllocCoTaskMem(Marshal.SizeOf(struct_IPI)); // Converting structure to IntPtr Marshal.StructureToPtr(struct_IPI, intptrStruct, true); bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI)); } private void Usage() { RefreshIESettings("1.2.3.4:8080"); object nullObject = 0; string strTemp = ""; object nullObjStr = strTemp; axWebBrowser1.Navigate("http://test.com", ref nullObject, ref nullObjStr, ref nullObjStr, ref nullObjStr); }