Lights

This topic demonstrate how to switch on/off lights using whether Windows messages or automation methods from your application.

We have designed a keyboard with only lights, representing :

a vumeter
a machine tool in-process or post-process
a warning board

Each light has a unique code assigned.

2000..2019 : Vumeter
2100..2119 : Post-process
2201..2205 : Warnings

User Codes list is between 2000 and 3000. Codes under 2000 are reserved.

We also have created a new Delphi project and dropped on the main form two track bars to drive the vumeter and post-process as well as five check boxes and a timer for flashing warnings.

You then just have to manage

the track bars OnChange events
the Timer OnTimer event
the CheckBoxes OnChange events

Choose one of the following sections:

Windows messages
Demonstrates how to drive lights using simple Windows messages.

Automation
Demonstrates how to drive lights using the automation server.