HP Transcend Traffix Manager User Manual

Page 148

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148

A

PPENDIX

E: A

UTOMATIC

A

TTRIBUTE

A

SSIGNMENT

The C examples are located in

C:\Transcend Traffix

Manager\TraffixServer\examples\c

and the Visual Basic

examples are in

C:\Transcend Traffix

Manager\TraffixServer\examples\vb

. You should copy one of

these samples to your own directory before modifying it.

Attribute lookup programs must be able to find the attripc.dll file when
they are running. This file is located in the Traffix Manager install
directory. In order that your program can find this file, you should copy
your program to the Traffix Manager install directory and run it from
there, or you should add the Traffix Manager install directory to the PATH
environment variable (it must be added as a system environment variable,
not a user variable). Be careful not to overwrite any of the executables
already in the Traffix Manager install directory.

Once you have built your attribute lookup program and copied it if
necessary, you should add it to the user-defined attribute program
configuration file (see

“Contents of the User-defined Attributes

Configuration File”

on

page 138

).

Library functions available

Table 21

shows a full list of the functions available to attribute lookup

programs in the attripc DLL library:

country

Visual Basic

Simple example program which assigns an
attribute country based on DNS name.

template

Visual Basic

Empty attribute program which does nothing, but
which contains all the necessary project files and
declarations to build an attribute lookup program.

Table 21 Functions available to lookup programs in the attripc DLL library

Function

Description

GetNextLookup

Takes no arguments. Returns an integer. This function waits
until Traffix Manager want to determine new attributes for a
device, or until Traffix Manager is closing down. If Traffix
Manager wants to determine attributes for a device, this
returns 1. If Traffix Manager wants your program to exit, this
function returns 0.

(continued)

Table 20 Example Programs (continued)

Name

Language

Description

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