ActiveSocket Toolkit Add network capabilities to any Windows or .NET application

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Visual C++ 5.x/6.x SNMP Receive Trap 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: DNS, FTP, HTTP, HTTPs, ICMP Ping, IP-to-Country, MSN, NTP, RSH, SCP, SFTP, SNMP v1/v2c (Get, GetNext, Set), SNMP Traps, SNMP MIB, SSH, TCP, Telnet, TFTP, UDP, Telnet, Wake-On-LAN and more.

ActiveSocket SNMP traps can be well integrated into Visual C++ 5.x/6.x environments. This document describes how ActiveSocket SNMP traps can be integrated into Visual C++ 5.x/6.x projects.

ActiveSocket is compliant with SNMP v1 and SNMP v2c. Several SNMP data types are supported, including:

  • String types (also called "octet strings");
  • Integer types (16bit, 32bit, 64bit and unsigned integers);
  • IP Address types;
  • Timetick types;
  • Counter types (32bit and 64bit counters);
  • OID types (also called "Object ID's");
  • Other, less frequently used datatypes.

ActiveSocket SNMP traps features:

  • SNMP v1 and SNMP v2c support
    • ;
  • Support for aplphanumeric OID's (object identifier) and numeric OID's;
  • Multi-threading architecture: send SNMP traps simultaneously from one process using multiple threads;
  • Support for ports other than the default 161 and 162 ports;
  • Send multiple SNMP traps in one SNMP message.

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

Step 2: Create a new Visual C++ project

Launch 'Microsoft Visual C++' from the Start menu, and choose 'New' from the 'File Menu'. The 'New' dialog appears. Select the type of project (for instance: 'Win32 Console Application'), enter a 'Project name' and select the 'Location':

Visual C

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Select the kind of project, for instance a 'Hello, world!' application and click 'Finish':

Visual C

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

A new Project is created now

Before you can use ActiveSocket, you need to refer to the ActiveSocket library. The actually reference files are shipped with the product and are located in the following directory:

C:\Program Files\ActiveXperts\ActiveSocket\Examples\Visual C++\Include

Copy all files in the above directory ('ASocket.h', 'ASocket_i.c' and 'ASocketConstants.h') to your project directory.

On top of your code, declare the following object:

    ISnmpTrapManager	*pSnmpTrapManager = NULL;

Step 4: Create the objects

Since the ActiveSocket Toolkit is a COM object, you must initialize the COM library before they can call COM library functions (e.g. ActiveSocket functions):

CoInitialize(NULL);

Create the object in the following way:

CoCreateInstance(CLSID_SnmpTrapManager, NULL, CLSCTX_INPROC_SERVER, IID_ISnmpTrapManager, (void**) &pSnmpTrapManager );