User's Manual

Table Of Contents
6-23
1. A terminal going out of range and having its power cycled before
returning within range OR
2. Two (or more) terminals using the same ID (terminal ID conflict).
Concepts
Drop-in components are tools that are added to your programming environment
"tool kit". Only the ActiveX variety are widely compatible with almost all
development environments. When you use drop-in components in your program
you will follow the standard object-oriented programming paradigm that uses
properties, methods, and events to implement the functionality of the drop-in
component.
Properties are the various configuration variables used by the drop-in
component. An example of a property is the ServerOn setting.
Methods are function calls used to issue commands and access features of the
drop-in component. An example of a method is sending an Input command to
the terminal.
Events are function definitions placed in your application’s source code. The
function definitions in your source code are called Event Handlers. The skeleton
structure of the event handler’s source code is automatically generated. The code
in the Event Handler is called ("fired") by the drop-in component when a
specific event occurs. An example of an event is when a terminal returns data
and the OnTermData event is fired.
The details of how to access Properties/Methods/Events varies between
development platforms. Details of how it works in some of the most popular
platforms is illustrated in the samples included with the RF Utilities CD or
available for download from our website at:
http://www.barcodehq.com/wdterminal.exe