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adjust `scriblib/gui-eval' docs

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since it's no longer needed for `racket/draw' images

original commit: 8e289018c8c3f56336417d6b0d41b7d3ca68f4b5
This commit is contained in:
Matthew Flatt 2011-04-04 10:43:38 -06:00
parent c9595e0a7a
commit 09a020b547
1 changed files with 4 additions and 3 deletions
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7
collects/scriblib/scribblings/gui-eval.scrbl
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@ -1,15 +1,16 @@
#lang scribble/manual
@(require (for-label scribble/eval scriblib/gui-eval))
@title[#:tag "gui-eval"]{Writing Examples with Pict Results}
@title[#:tag "gui-eval"]{Examples Using the GUI Toolbox}
@defmodule[scriblib/gui-eval]{The
@schememodname[scriblib/gui-eval] library support example
evaluations with results that are @schememodname[slideshow] picts.}
evaluations that use @schememodname[racket/gui] facilities (as opposed
to just @racketmodname[racket/draw]) to generate text and image results.}
The trick is that @schememodname[racket/gui] is not generally
available when rendering documentation, because it requires a GUI
context. The picture output is rendered to an image file when the
context. Text and image output is rendered to an image file when the
@envvar{MREVAL} environment variable is set, so run the enclosing
document once with the environment varibale to generate the
images. Future runs (with the environment variable unset) use the