SNMP MIB Browser - Borland Delphi Sample Source Code

ActiveSocket provides an easy-to-use development interface to a variety of IP protocols. By using ActiveSocket, you can very easily create or enhance applications with network features.

ActiveSocket features the following: ICMP, TCP, UDP, HTTP and HTTPs with support for proxy servers and secure web sites, DNS, Telnet, NTP time protocol, SSH Secure Shell, RSH remote shell script interface, SNMP (Simple Network Management Protocol), SNMP Traps, SNMP MIB Browser, Sockets, WOL (Wake-On-LAN), IP-to-Country and more.

SNMP MIB Browsing can be well integrated into Borland Delphi environments.
This document describes how ActiveSocket's SNMP MIB Browser can be integrated into Borland Delphi projects.

A management information base (MIB) is a database used to manage the devices in a communications network. The database is hierarchical (tree-structured) and entries are addressed through object identifiers (OID's). A MIB should contain information on these commands and on the target objects (controllable entities or potential sources of status information) with a view to tuning the network transport to the current needs. Each type of object in a MIB database has a name, a syntax, and an encoding. The name is represented uniquely as an OID. An OID is an administratively assigned name. The administrative policies used for assigning names are discussed later in this memo.

Use ActiveSocket's 'SnmpMibBrowser' object to load a MIB database into memory and iterate over all objects and view all properties.

Prerequisites

IMPORTANT: Make sure that the SNMP Service is installed and running on the machine where ActiveSocket is installed. For more details, please read FAQ items Q1200010 and Q1200015.

Step 1: Download and install the ActiveSocket Toolkit

Download the ActiveSocket from the ActiveXperts Download Site and start the installation. The installation guides you through the installation process.

Step 2: Create a new Delphi Project

Launch Borland Delphi (for instance 'Delphi 2005') from the Start menu. Choose 'New' from the 'File' menu and select your preferred kind of application, for instance: 'VCL Forms Application - Delphi for Win32'. A new Form is displayed in the workspace.

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Step 3: Refer to the ActiveSocket Library and create the objects

Now that a new project has been created, you must add a reference to ActiveSocket in the project to be able to use the ActiveSocket object. To do so, choose 'Import Component...' from the 'Component' menu. The Import Components' dialog appears. Select 'Import a Type Library':

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In the 'Registered Type Libraries' page, select 'ActiveSocket Type Library' and click 'Next':

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In the 'Components' page, leave all fields default and click 'Next':

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In the 'Install' page, select 'Create Unit' and click 'Next':

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The interface code is generated now and is shown in the ASOCKETLib_TLB tab of the project.

Step 4: Declare and create the object

From the Project Manager, open Unit1.bas and add the ASOCKETLib_TLB to the 'Uses' statement to refer to the ActiveSocket library:

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In the 'private' or 'public' section, declare the following objects:

   objSnmpMibBrowser    : ISnmpMibBrowser

You can now create the objects, for instance in the 'FormCreate' function:

   objSnmpMibBrowser     := TSnmpMibBrowser.Create(Form1).DefaultInterface;

The ActiveSocket tool is a Network Communications ActiveX software component (SDK). This control supports SNMP, SMTP, POP3, Telnet, TCP, NTP, RSH, HTTP, HTTPs, FTP, DNS, ICMP and more, and can be used by any Windows development platform, including Visual Basic .NET, Visual CSharp .NET, ASP .NET (VB,CS), ASP, Visual Basic, Visual Studio/Visual C++, Delphi, PHP, ColdFusion, HTML, VBScript and any other ActiveX/COM compliant platform. The ActiveSocket Toolkit is an ActiveXperts Software B.V. Product.