C#

<br />
Rectangle testrect=new Rectangle(testwin.Left,testwin.Top,testwin.Width,testwin.Height);<br />
<br />
foreach(Form f in MDIChildren)<br />
{<br />
  Rectangle winrect = new Rectangle(f.Left,f.Top,f.Width,f.Height);<br />
  <br />
  // some code to check, wether the testrect intersects winrect or lies entirely within the winrect<br />
  // if((winrect.left<=testrect.left)&& ...<br />
<br />
}<br />

if( winrect.IntersectsWith( testrect ) == true ) {
    // at least PART of the rectangle is obscured.
}

public static bool SendEMail(string to, string from, string subject, string body)
{
   bool isOk = false;

   try
   {
      SmtpConfig.LogToText=false;

      MailMessage msg = new MailMessage(from,to);
      msg.Subject = subject;
      msg.Body = body;
      Smtp smtp = new Smtp("MyMailServer",25);
      smtp.Username="myUsername";
      smtp.Password="myPassword";
      smtp.SendMail(msg);
      isOk = true;
   }
   catch(MalformedAddressException mfa)
   {
      Debug.WriteLine("Address error occured: " + mfa.Message);
   }
   catch(SmtpException se)
   {
      Debug.WriteLine("Smtp error occured: " + se.Message);
   }
   catch(Exception ex)
   {
      Debug.WriteLine("Error occured: " + ex.Message );
   }

   return isOk;
}