internal static IntPtr Dial(string entryName, string user, string pwd, Action <uint, RasConnectionState, uint, uint> action)
{
var radDialParams = new RASDIALPARAMS
{
size = Marshal.SizeOf <RASDIALPARAMS>(),
domain = "",
userName = user,
password = pwd,
entryName = entryName,
};
var rasDialExtensions = new RASDIALEXTENSIONS
{
size = Marshal.SizeOf <RASDIALEXTENSIONS>(),
devSpecificInfo = new RASDEVSPECIFICINFO
{
size = Marshal.SizeOf <RASDEVSPECIFICINFO>(),
}
};
var callback = new VpnNative.RasDialFunc2((a, b, c, messageId, connectionState, error, extendedError) =>
{
action(messageId, connectionState, error, extendedError);
return(true);
});
PinCallback(callback);
Checked("RasDial", VpnNative.RasDial(ref rasDialExtensions, null, ref radDialParams, 2, callback, out var handle));
return(handle);
}
private static void PinCallback(VpnNative.RasDialFunc2 callback)
{
// we pin callbacks so they are not garbage collected
_pinnedCallbacks.Add(callback);
// remove old to avoid memory leaks
if (_pinnedCallbacks.Count > 10)
{
_pinnedCallbacks.RemoveAt(0);
}
}
