PowerTCP Server for ActiveX

PowerTCP Server for ActiveX Features

Dns ActiveX Control

Use the Dns control to integrate domain name resolution into any COM application, allowing your application to easily resolve domain names, host addresses, and email addresses. Features include:

• The Dns control bypasses Winsock system services, so you can query ANY Domain Name Server on the Internet.
• Resolve a domain name to a dot address (forward lookup)
• Resolve a dot address to a domain name (reverse lookup)
• Resolve an email address to the mail server responsible for the mail server (mx lookup)
• The Dns control comes complete with extensive samples.

 

Development Environments

• Visual Studio .NET (.NET Framework)
• Visual Basic (VB)
• Visual C++ (VC++)
• FoxPro
• ASP
• Office 97/2000

  

Interface Members

Public Properties
Addresses	Collection of addresses in dot notation (nnn.nnn.nnn.nnn) returned by the Domain Name Server.
Id	Sets the Dns request ID included with the request.
Names	Collection of names returned by the Domain Name Server.
ServerName	Domain Name Server to use for queries.
ServerPort	Domain Name Server port for queries.
Timeout	Controls the blocking behavior of methods that can be used in blocking and non-blocking ways.
Public Methods
Abort	Abort any blocking method and release all system resources.
About	Show the About Box.
GetAddress	Resolve a host name to a dot address.
GetMailServer	Get the mail server (or servers) responsible for receiving mail for a given email address.
GetName	Resolve a dot address to a host name.
Public Events
Error	Fires when an error condition occurs.
Response	Fires after the Id, Addresses, and Names properties are updated with the contents of a DNS response.

 

Code Example

How easy is the DNS ActiveX control to use? Check out the following VB example below, which demonstrates getting an IP address for a domain name.