private static bool CallInternetSetOption(InternetPerConnectionOption[] options)
{
var optionList = new InternetPerConnectionOptionList();
optionList.size = Marshal.SizeOf(optionList);
optionList.connection = IntPtr.Zero; //Default Connection
optionList.optionCount = options.Length;
optionList.optionError = 0;
optionList.options = VarPtr(options);
var optionListSize = Marshal.SizeOf(optionList);
var optionListPtr = Marshal.AllocCoTaskMem(optionListSize);
Marshal.StructureToPtr(optionList, optionListPtr, true);
bool iReturn;
iReturn = WinInet.InternetSetOption(IntPtr.Zero, (int)InternetOption.INTERNET_OPTION_PER_CONNECTION_OPTION, optionListPtr,
Marshal.SizeOf(optionList));
if (iReturn == false)
{
var exception = new Win32Exception(Marshal.GetLastWin32Error());
throw exception;
}
iReturn = InternetOptionSettingsChanged();
//if (iReturn == true)
//{
// iReturn = InternetOptionRefresh();
//}
// free the COM memory
Marshal.FreeCoTaskMem(optionListPtr);
return(iReturn);
}
public static bool InternetOptionRefresh()
{
return(WinInet.InternetSetOption(IntPtr.Zero, (int)InternetOption.INTERNET_OPTION_REFRESH, IntPtr.Zero, 0));
}
public static bool InternetOptionSettingsChanged()
{
return(WinInet.InternetSetOption(IntPtr.Zero, (int)InternetOption.INTERNET_OPTION_SETTINGS_CHANGED, IntPtr.Zero, 0));
}