Version: 5.0.2

GUI: Racket Graphics Toolkit

Matthew Flatt,
Robert Bruce Findler,
and John Clements

This reference manual describes the GUI toolbox that is part of Racket and whose core is implemented by the GRacket executable.

The racket/gui/base library provides all of the class, interface, and procedure bindings defined in this manual. At run time, this library needs primitive graphics support that the GRacket executable provides; this library cannot run inside the Racket executable.

The racket/gui language combines all bindings of the racket language and the racket/gui/base modules.

    1 Overview

      1.1 Windowing

        1.1.1 Core Windowing Classes

        1.1.2 Geometry Management



 Defining New Types of Containers

        1.1.3 Mouse and Keyboard Events

        1.1.4 Event Dispatching and Eventspaces

 Event Types and Priorities

 Eventspaces and Threads

 Creating and Setting the Eventspace

 Exceptions and Continuation Jumps

      1.2 Drawing

      1.3 Editor

        1.3.1 Editor Structure and Terminology



        1.3.2 File Format

 Encoding Snips

   Snip Classes

   Editor Data

 Global Data: Headers and Footers

        1.3.3 End of Line Ambiguity

        1.3.4 Flattened Text

        1.3.5 Caret Ownership

        1.3.6 Cut and Paste Time Stamps

        1.3.7 Clickbacks

        1.3.8 Internal Editor Locks

        1.3.9 Editors and Threads

    2 Reference

      2.1 Windowing Classes

      2.2 Windowing Functions

        2.2.1 Dialogs

        2.2.2 Eventspaces

        2.2.3 System Menus

        2.2.4 Miscellaneous

      2.3 Drawing Classes

      2.4 Drawing Functions

        2.4.1 Global Graphics

        2.4.2 PostScript

        2.4.3 Drawing Object Lists

        2.4.4 Fonts

      2.5 Editor Classes

      2.6 Editor Functions

      2.7 WXME Decoding

        2.7.1 Snip Class Mapping

 Nested Editors


        2.7.2 DrRacket Comment Boxes

        2.7.3 DrRacket XML Boxes

        2.7.4 DrRacket Racket Boxes

        2.7.5 DrRacket Text Boxes

        2.7.6 DrRacket Fractions

        2.7.7 DrRacket Teachpack Images

        2.7.8 DrRacket Test-Case Boxes

    3 Configuration

      3.1 Preferences

      3.2 Font Configuration

        3.2.1 Wildcards

        3.2.2 References

        3.2.3 Variables

        3.2.4 Wildcarding References

        3.2.5 Internal Preferences

        3.2.6 PostScript Fonts

    4 Dynamic Loading