> Fltk supports 24 bit color depth.
Well, no, not really. Fltk supports a variety of colour depths, and
defaults to "truecolor" on most systems, which is generally 32-bit at
the graphics card these days.
However, it can readily support lower bit-depths, or indexed color
palettes. If you need to force an indexed palette, you might get a
useful result by calling;
Fl::visual(FL_DOUBLE|FL_INDEX);
Reading up on Fl::visual() and Fl::own_colormap() might help. The idea
being the you create a private indexed colormap that is tailored to
match the ability of your displays, and use that...
> My hardware supports 2bit color depth only. What changes I
> have to make in
> FLTK to run my application in my target board.
Really 2-bit? So you can display 4 different colours? That sounds quite
unusual.
Can we ask what sort of hardware this is?
SELEX Sensors and Airborne Systems Limited
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