private static void ExecuteAction(INTERNET_PER_CONN_OPTION[] options, Func <INTERNET_PER_CONN_OPTION_LIST, int, bool> action)
{
IntPtr buffer = Marshal.AllocCoTaskMem(options.Sum(item => Marshal.SizeOf(item)));
IntPtr current = buffer;
for (int i = 0; i < options.Length; i++)
{
Marshal.StructureToPtr(options[i], current, false);
current = (IntPtr)((int)current + Marshal.SizeOf(options[i]));
}
INTERNET_PER_CONN_OPTION_LIST optionList = new INTERNET_PER_CONN_OPTION_LIST();
optionList.pOptions = buffer;
optionList.Size = Marshal.SizeOf(optionList);
optionList.Connection = IntPtr.Zero;
optionList.OptionCount = options.Length;
optionList.OptionError = 0;
int size = Marshal.SizeOf(optionList);
try
{
if (!action(optionList, size))
{
throw new ApplicationException("WinInet: action failed!");
}
}
finally
{
Marshal.FreeCoTaskMem(buffer);
}
}
private static void ExecuteAction(INTERNET_PER_CONN_OPTION[] options, Func<INTERNET_PER_CONN_OPTION_LIST, int, bool> action)
{
IntPtr buffer = Marshal.AllocCoTaskMem(options.Sum(item => Marshal.SizeOf(item)));
IntPtr current = buffer;
for (int i = 0; i < options.Length; i++)
{
Marshal.StructureToPtr(options[i], current, false);
current = (IntPtr)((int)current + Marshal.SizeOf(options[i]));
}
INTERNET_PER_CONN_OPTION_LIST optionList = new INTERNET_PER_CONN_OPTION_LIST();
optionList.pOptions = buffer;
optionList.Size = Marshal.SizeOf(optionList);
optionList.Connection = IntPtr.Zero;
optionList.OptionCount = options.Length;
optionList.OptionError = 0;
int size = Marshal.SizeOf(optionList);
try
{
if (!action(optionList, size))
{
throw new ApplicationException("WinInet: action failed!");
}
}
finally
{
Marshal.FreeCoTaskMem(buffer);
}
}
internal extern static bool InternetQueryOption(IntPtr handle, INTERNET_OPTION optionFlag, ref INTERNET_PER_CONN_OPTION_LIST optionList, ref int size);
internal extern static bool InternetQueryOption(IntPtr handle, INTERNET_OPTION optionFlag, ref INTERNET_PER_CONN_OPTION_LIST optionList, ref int size);
