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Discussion "More built-in named colors for FLTK 1.5?" (#1259).
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A new file FL/rgb_colors.H is created to define 490 color names.
This file derives from Xorg's rgb.txt list of color names.
The purpose and use of this file is documented.
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ManoloFLTK
2026-04-20 16:34:07 +02:00
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@@ -264,6 +264,11 @@ Color values greater than 255 are treated as 24-bit RGB values. These are mapped
to the closest color supported by the screen, either from one of the 256 colors
in the FLTK colormap or a direct RGB value on TrueColor screens.
File FL/rgb_colors.H defines 490 constants of type Fl_Color than can be used to identify
many colors by a name. The names of these constants (example: FL_RGB_ALICE_BLUE) begin
with the "FL_RGB_" prefix and use the English-language color names of Xorg's "share/X11/rgb.txt" file
and their values. Include <FL/rgb_colors.H> in your program to gain access to these color names.
Fl_Color fl_rgb_color(uchar r, uchar g, uchar b) <br>
Fl_Color fl_rgb_color(uchar grayscale)