It works fine with the multiplying method, not sure why I had doubts about it. Anyway, thanks.
On 25 August 2010 15:45, MacArthur, Ian (SELEX GALILEO, UK) < ian.macart...@selexgalileo.com> wrote: > > > what I want to do is picking up a color from an > > Fl_Color_Chooser (widget) > > then convert it to an Fl_Color (type) to use it in a drawing function. > > What I tried so far looks like this: > > > > Fl_Color_Chooser *Co; > > Fl_Color c = fl_rgb_color(Co->r(), Co->g(), Co->b()); > > > > This unfortunately always ends up black, because the widget's > > r(), g(), b() > > returns a value between 0 and 1.0, and as far as I know > > fl_rgb_color expects > > values between 1-255. > > Anyone can give me a good solution for this conversion? Or > > should I simply > > multiply the rgb values with 255and round? > > The color_chooser.cxx example in the test folder is worth a look, but > yes, multiplying by 255 should be fine. > > Note that many folk use the fl_color_chooser function rather than the > Fl_Color_Chooser class, and that the function does provide a version > that takes/returns bytes... > > > > SELEX Galileo Ltd > Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex > SS14 3EL > A company registered in England & Wales. Company no. 02426132 > ******************************************************************** > This email and any attachments are confidential to the intended > recipient and may also be privileged. If you are not the intended > recipient please delete it from your system and notify the sender. > You should not copy it or use it for any purpose nor disclose or > distribute its contents to any other person. > ******************************************************************** > > _______________________________________________ > fltk mailing list > fltk@easysw.com > http://lists.easysw.com/mailman/listinfo/fltk > _______________________________________________ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
