About controls
About window controls
You place controls in a window to request and receive information
from the user and to present information to the user. The window
controls are:
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Creating user objects If you often use a control or set of controls with certain
properties (such as a group of related radio buttons), you might
want to create a user object, which is one or more controls with
predefined behavior that can be inserted in a window.
For more about user objects, see Chapter 12, “Working with User Objects “.
About events
All window controls have events, so users can act on the controls.
You write scripts that determine the processing that takes place
when an event occurs in the control.
Drawing objects are usually used only to make your window
more attractive or to group controls. The drawing objects are:
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Drawing objects have only constructor and destructor events
defined, but you can define your own events if needed.