@iftex
@finalout
@end iftex
-@comment $Id: scheme.texinfo,v 1.60 1996/04/07 18:32:21 cph Exp $
+@comment $Id: scheme.texinfo,v 1.61 1996/04/15 21:43:58 adams Exp $
@comment %**start of header (This is for running Texinfo on a region.)
@setfilename scheme
@settitle MIT Scheme Reference
ellipses and filled polygons.
Colors are specified in one of three ways:
+
@table @asis
@item An integer
This is the Win32 internal RGB value.
Names are strings, e.g.@: @code{"red"}, @code{"blue"}, @code{"black"}.
More names can be registered with the @code{define-color} operation.
-
@item RGB (Red-Green-Blue) triples
A triple is either a vector or list of three integers in the range
0--255 inclusive which specify the intensity of the red, green and blue
@var{Spec} may be any acceptable color specification. Note that the
color names defined this way are available to any Win32 graphics device,
and the names do @emph{not} have to be defined for each device.
+
+
+Color names defined by this interface may also be used when setting the
+colors of the Scheme console window, or the colors of Edwin editor
+windows.
@end defop
@defop {operation+} win32-graphics-device find-color name
Predicates beginning with @code{Is} finally have a
question-mark appended.
@end itemize
+
+@noindent
Example: applying these rules to @code{IsWindow} yields
@code{is-window?}, and @code{GetDC} is translated into @code{get-dc}.