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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 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. 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 r, uchar g, uchar b) <br>
Fl_Color fl_rgb_color(uchar grayscale) Fl_Color fl_rgb_color(uchar grayscale)