Volume 6A: Motif Programming Manual

these widgets are short, they are defined in the body of the search_panel definition instead of in separate object

sections. In contrast, the size of the search_panel itself makes it too large to place in the Form parent without

making the module unreadable.

26.1.2 The Menu System

Even though the MenuBar for this application contains only a few entries, there are still enough widgets to make it

worthwhile to define the menu system in a separate UIL module. This technique makes sense for most applications.

The general widget hierarchy for a MenuBar is basically the same for all applications. The top−level widget is the

MenuBar; it contains a CascadeButton for each menu. The editor application provides File, Edit, and Search menus.

A PulldownMenu is associated with each CascadeButton and contains the individual menu entries. The definition of

the menu system for the editor program is shown in the source code

! menubar.uil − editor application main window MenuBar definitions

module editor_menubar

objects = {

XmLabel = gadget;

XmCascadeButton = gadget;

XmPushButton = gadget;

XmToggleButton = gadget;

XmSeparator = gadget;

}

include file 'procedures.uih';

object menubar : exported XmMenuBar {

controls {

XmCascadeButton file;

XmCascadeButton edit;

XmCascadeButton search;

};

};

object file : XmCascadeButton {

controls {

file_menu : XmPulldownMenu {

controls {

XmPushButton open;

XmPushButton save;

XmSeparator { };

XmPushButton exit;

};

};

};

arguments {

XmNlabelString = "File";

XmNmnemonic = ...