ITT Rule IDL Version 7.0 User Manual download pdf (Page 334)

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334 Chapter 15: Creating a Custom iTool Widget Interface

About Custom iTool Widget Interfaces iTool Developer’s Guide

• Use of the iTool compound widgets (see Appendix B, “iTool Compound

Widgets”).

What You Will Need to Create

To build a custom iTool user interface, you will need to create a minimum of two

new

.pro files:

• The widget interface definition. This file creates the widget interface, defines

event handlers and callbacks, takes care of widget resizing and cleanup, and

registers the widgets with a user interface object.

• A launch routine. This file registers the custom interface with the iTools

system and launches the iTool with the specified interface.

You may create any number of other additional files, but in most cases you will also

create:

• An iTool class definition routine. This file creates an instance of the iTool that

will use your custom interface. The iTool class definition may simply subclass

an existing iTool class, registering new items or unregistering some of the

standard items, or it may be an entirely new iTool of your creation.

Note

While you can create an iTool interface that mimics an existing application’s

traditional widget interface, you cannot simply add iTool compound widgets to an

existing widget interface. The iTool compound widgets rely on the iTool system,

and will not function on their own.

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ITT Rule IDL Version 7.0 User Manual Page 334

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