► |  | The Racket Graphical Interface Toolkit

1 | Windowing
2 | Widget Gallery
3 | Windowing Classes
4 | Windowing Functions
5 | Editors
6 | Snip and Style Classes
7 | Editor Classes
8 | Editor Functions
9 | WXME Decoding
10 | Preferences
11 | Dynamic Loading
12 | Startup Actions
13 | Init Libraries
14 | Platform Dependencies
| Index

▼ | 3 | Windowing Classes

3.1 | area<%>
3.2 | area-container<%>
3.3 | area-container-window<%>
3.4 | button%
3.5 | canvas<%>
3.6 | canvas%
3.7 | check-box%
3.8 | checkable-menu-item%
3.9 | choice%
3.10 | clipboard-client%
3.11 | clipboard<%>
3.12 | combo-field%
3.13 | control<%>
3.14 | column-control-event%
3.15 | control-event%
3.16 | cursor%
3.17 | dialog%
3.18 | event%
3.19 | frame%
3.20 | gauge%
3.21 | group-box-panel%
3.22 | grow-box-spacer-pane%
3.23 | horizontal-pane%
3.24 | horizontal-panel%
3.25 | key-event%
3.26 | labelled-menu-item<%>
3.27 | list-box%
3.28 | list-control<%>
3.29 | menu%
3.30 | menu-bar%
3.31 | menu-item<%>
3.32 | menu-item%
3.33 | menu-item-container<%>
3.34 | message%
3.35 | mouse-event%
3.36 | pane%
3.37 | panel%
3.38 | popup-menu%
3.39 | printer-dc%
3.40 | radio-box%
3.41 | selectable-menu-item<%>
3.42 | separator-menu-item%
3.43 | scroll-event%
3.44 | slider%
3.45 | subarea<%>
3.46 | subwindow<%>
3.47 | tab-panel%
3.48 | text-field%
3.49 | timer%
3.50 | top-level-window<%>
3.51 | vertical-pane%
3.52 | vertical-panel%
3.53 | window<%>

On this page:

new

Inherited methods:
from dc<%>
cache-font-metrics-key
clear
copy
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
erase
flush
get-alpha
get-background
get-backing-scale
get-brush
get-char-height
get-char-width
get-clipping-region
get-device-scale
get-font
get-gl-context
get-initial-matrix
get-origin
get-path-bounding-box
get-pen
get-rotation
get-scale
get-size
get-smoothing
get-text-background
get-text-extent
get-text-foreground
get-text-mode
get-transformation
glyph-exists?
ok?
resume-flush
rotate
scale
set-alignment-scale
set-alpha
set-background
set-brush
set-clipping-rect
set-clipping-region
set-font
set-initial-matrix
set-origin
set-pen
set-rotation
set-scale
set-smoothing
set-text-background
set-text-foreground
set-text-mode
set-transformation
start-doc
start-page
suspend-flush
transform
translate
try-color

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class printer-dc% : class?
superclass: object%
extends: | dc<%>

A printer-dc% object is a printer device context. 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 the end-doc method is called on a printer-dc% instance, the user may receive a dialog to determine how the document is printed.

> constructor (new printer-dc% [[parent parent]]) → (is-a?/c printer-dc%)
> parent : (or/c (is-a?/c frame%) (is-a?/c dialog%) #f) = #f

If parent is not #f, it is may be as the parent window of the dialog (if any) presented by end-doc.
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