► |  | GUI: Racket Graphics Toolkit

1 | Overview
2 | Reference
3 | Configuration
4 | Dynamic Loading
| Bibliography
| Index

► | 2 | Reference

2.1 | Windowing Classes
2.2 | Windowing Functions
2.3 | Drawing Classes
2.4 | Drawing Functions
2.5 | Editor Classes
2.6 | Editor Functions
2.7 | WXME Decoding

▼ | 2.3 | Drawing Classes

2.3.1 | bitmap%
2.3.2 | bitmap-dc%
2.3.3 | brush%
2.3.4 | brush-list%
2.3.5 | color%
2.3.6 | color-database<%>
2.3.7 | dc<%>
2.3.8 | dc-path%
2.3.9 | font%
2.3.10 | font-list%
2.3.11 | font-name-directory<%>
2.3.12 | gl-config%
2.3.13 | gl-context<%>
2.3.14 | pen%
2.3.15 | pen-list%
2.3.16 | point%
2.3.17 | post-script-dc%
2.3.18 | printer-dc%
2.3.19 | ps-setup%
2.3.20 | region%

Inherited methods:
from dc<%>
cache-font-metrics-key
clear
draw-arc
draw-bitmap
draw-bitmap-section
draw-ellipse
draw-line
draw-lines
draw-path
draw-point
draw-polygon
draw-rectangle
draw-rounded-rectangle
draw-spline
draw-text
end-doc
end-page
get-alpha
get-background
get-brush
get-char-height
get-char-width
get-clipping-region
get-font
get-gl-context
get-origin
get-pen
get-scale
get-size
get-smoothing
get-text-background
get-text-extent
get-text-foreground
get-text-mode
glyph-exists?
ok?
set-alpha
set-background
set-brush
set-clipping-rect
set-clipping-region
set-font
set-origin
set-pen
set-scale
set-smoothing
set-text-background
set-text-foreground
set-text-mode
start-doc
start-page
try-color

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printer-dc% : class?
superclass: object%

extends: | dc<%>

A printer-dc% object is a Windows or Mac OS X printer device context. The class cannot be instantiated under X (an exn:misc:unsupported exception is raised).

Under Mac OS X, a newly created printer-dc% object obtains orientation (portrait versus landscape) and scaling information from the current ps-setup% object, as determined by the current-ps-setup parameter. This information can be configured by the user through a dialog shown by get-page-setup-from-user.

Be sure to use the following methods to start/end drawing:

- start-doc

- start-page

- end-page

- end-doc

Attempts to use a drawing method outside of an active page raises an exception.

See also post-script-dc%.

When a printer-dc% object is created, the user gets platform-specific modal dialogs for configuring the output. If the user cancels the dialog, the ok? method of the object returns #f.

( new printer-dc% [[parent parent]]) → ( is-a?/c printer-dc% )

| parent |  | : |  | ( or/c ( is-a?/c frame% ) ( is-a?/c dialog% ) false/c )
|  |  | = |  | #f

If parent is not #f, it is used as the parent window of the configuration dialog.
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