public static void SetIEProxy(bool enable, bool global, string proxyServer, string pacURL)
{
string[] allConnections = null;
var ret = RAS.GetAllConns(ref allConnections);
if (ret == 2)
{
throw new Exception("Cannot get all connections");
}
if (ret == 1)
{
// no entries, only set LAN
SetIEProxy(enable, global, proxyServer, pacURL, null);
}
else if (ret == 0)
{
// found entries, set LAN and each connection
SetIEProxy(enable, global, proxyServer, pacURL, null);
foreach (string connName in allConnections)
{
SetIEProxy(enable, global, proxyServer, pacURL, connName);
}
}
}
/// <summary>
/// Get all entries from RAS
/// </summary>
/// <param name="allConns"></param>
/// <returns>
/// 0: success with entries
/// 1: success but no entries found
/// 2: failed
/// </returns>
public static uint GetAllConns(ref string[] allConns)
{
int lpNames = 1;
int entryNameSize = 0;
int lpSize = 0;
uint retval = ERROR_SUCCESS;
RasEntryName[] names = null;
entryNameSize = Marshal.SizeOf(typeof(RasEntryName));
lpSize = lpNames * entryNameSize;
names = new RasEntryName[lpNames];
names[0].dwSize = entryNameSize;
retval = RAS.RasEnumEntries(null, null, names, ref lpSize, out lpNames);
//if we have more than one connection, we need to resize
if (retval == ERROR_BUFFER_TOO_SMALL)
{
names = new RasEntryName[lpNames];
for (int i = 0; i < names.Length; i++)
{
names[i].dwSize = entryNameSize;
}
retval = RAS.RasEnumEntries(null, null, names, ref lpSize, out lpNames);
}
if (retval == ERROR_SUCCESS)
{
if (lpNames == 0)
{
// no entries found.
return(1);
}
allConns = new string[names.Length];
for (int i = 0; i < names.Length; i++)
{
allConns[i] = names[i].szEntryName;
}
return(0);
}
else
{
return(2);
}
}