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X Resources and the Graphical User Interface
This section contains more detailed information about X resources and scheme files
that control the appearance and operation of the Graphical User Interface. This
section:
•
Describes the X Window concepts surrounding resource specification.
•
Describes the Graphical User Interface's implementation of scheme files.
X Resource Specifications
An X resource specification is a resource name and a value. The resource name
identifies the element whose appearance or behavior is to be defined, and the value
specifies how the element should look or behave. For example, consider the
following resource specification:
Application.form.row.done.background: red
The resource name is "Application.form.row.done.background:" and the value is
"red".
Resource Names Follow Widget Hierarchy
A widget is an OSF/Motif graphic device from which X applications are built. For
example, pushbuttons and menu bars are Motif widgets. Applications are built
using a hierarchy of widgets, and the application's X resource names follow this
hierarchy. For example:
Application.form.row.done.background: red
In the resource name above, the top-level widget is named after the application.
One of the top-level widget's children is a form widget, one of the form widget's
children is a row-column manager widget, and one of the row-column manager
widget's children is a pushbutton widget. Resource names show a path in the
widget hierarchy.
Each widget in the hierarchy is a member of a widget class, and the particular
instance of the widget is named by the application programmer.
X Resources and the Graphical User Interface
Chapter 15: Concepts
485
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