How to connect to the QLM License Server via a proxy server

If a client computer connects to the internet via a Proxy Server that requires authentication, you must configure QLM to use the proxy server by setting the following properties:

UseProxy, ProxyUser, ProxyDomain, ProxyPassword, ProxyHost, ProxyPort 

After these properties are set, you can call any API that communicates with the QLM License Server.

To detect that the customer requires authentication through a proxy server, you need to catch the exception that is thrown when the QLM API fails.

try
{  
   license.ActivateLicense(...);
}
catch (System.Net.WebException wex)
{   
   if (wex.Message.IndexOf("407") != -1)
   {
      // Customer user proxy server that requires authentication.
      // Configure the proxy settings - it is not recommended to put all this code in the catch clause - this is just to show you what APIs to call

      license.UseProxy = true;
      license.ProxyUser = "xxx";
      license.ProxyPassword= "***";
      license.ProxyDomain = "yyy";

      license.ProxyHost= "zzz";
      license.ProxyPort= 8080;
      license.ActivateLicense (...);
   }
   else
   {
      // error
      return;
   }
}
catch (Exception ex)
{
   // error
   return;
}