ITT Rule IDL Version 7.0 User Manual download pdf (Page 399)

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Appendix B: iTool Compound Widgets 399

iTool Developer’s Guide CW_ITMENU

CW_ITMENU

The CW_ITMENU function creates a top-level pulldown menu compound widget.

The menu items in the pulldown menu correspond to the operations contained in a

specified container object within the OPERATIONS container of the associated

iTool. (See “iTool Object Hierarchy” on page 31 for a description of the iTool object

hierarchy.)

Warning

This routine can only be used in the context of a user-created iTool. See “Overview

of iTools Compound Widgets” on page 398 for details.

The CW_ITMENU widget automatically performs the following actions:

1. For each child in the folder, creates either a submenu (if the child is a container

object) or a menu item (if the child is a registered operation). In both cases the

child’s NAME property is used for the menu item value.

• If the child is a container, CW_ITMENU recursively creates submenus

and menu items for that child’s children.

• If the child is an operation, CW_ITMENU creates a menu item. The

child’s ACCELERATOR property is used for the keyboard accelerator

(unless the CONTEXT_MENU keyword is set). The DISABLE property

is used to determine initial sensitivity. If the CHECKED property is set, a

checked menu item is created. If SEPARATOR is set, a menu separator is

inserted before the menu item. See IDLitTool::RegisterOperation for

details on using these properties.

2. Registers the newly-created menu with the specified user interface object.

3. Adds itself as an observer of the specified container. If any changes occur to

items within the container, then the menu will be notified and will

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ITT Rule IDL Version 7.0 User Manual Page 399

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