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authorGreg Ercolano <erco@seriss.com>2013-04-02 16:47:57 +0000
committerGreg Ercolano <erco@seriss.com>2013-04-02 16:47:57 +0000
commitba0c61b961eb0cb69885d72cfed8299c537105f8 (patch)
tree7dd9d1b050e1ebb34fae1120294f5d67ae49b082 /documentation
parentbbbde512e858bf62aa53c5cda5f49d6dc6179a0f (diff)
Small color documentation clarification/improvements:
o Added some references to the FLTK colormap diagram in obvious places (Fl_Color docs) o Added info regarding the 'reserved' colors o Added quotes to clarify RGBI description: "RGB" and "I" git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9856 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'documentation')
-rw-r--r--documentation/src/drawing.dox9
1 files changed, 5 insertions, 4 deletions
diff --git a/documentation/src/drawing.dox b/documentation/src/drawing.dox
index 285a61ea5..8a2e0e940 100644
--- a/documentation/src/drawing.dox
+++ b/documentation/src/drawing.dox
@@ -154,11 +154,12 @@ the current clipping region.
\section drawing_colors Colors
FLTK manages colors as 32-bit unsigned integers, encoded as RGBI.
-When the RGB bytes are non-zero, the value is treated as RGB.
-If these bytes are zero, the I byte will be used as an index
-into the colormap.
+When the "RGB" bytes are non-zero, the value is treated as RGB.
+If these bytes are zero, the "I" byte will be used as an index
+into the colormap. Colors with both RGB set and an index >0
+are reserved for special use.
-Values from 0 to 255, i.e. the I index value, represent
+Values from 0 to 255, i.e. the "I" index value, represent
colors from the FLTK 1.3.x standard colormap
and are allocated as needed on screens without TrueColor support.
The \b Fl_Color enumeration type defines the