7.1. Overview

Events are connections between occurrences determined by an Active-X Control (OCX), such as input message arrival, and code written by the OCX user (event handlers). In essence, an event is a hook for the programmer to specify what code to execute when a particular occurrence happens. Events are not available at design time.

To learn more about the concepts of UCM communication and its addressing methods, please refer to the Active-X section in this manual.

This chapter contains descriptions of all events of the UCM Active-X control Ucm.ocx. The page headers for each description contain the property name and title.

The Synopsis section gives a summary of the actual event function declaration.

The Description explains all of the event’s operational details.

The Parameter section, describes the event handler parameters and their data type.

Related events, properties and methods are identified in the See Also section.

These events are also described in the Windows help file ucm.hlp.

The following events are in alphabetical order: