yeajchao wrote: >Hello all > I am chinese,I am sorry for my terriblly poor English ! > > I have confused about GdkColor > > In general,the RGB color mode ,the red or green or blue's value is from 0 >to 255 > But ,the GdkColor ,the value is from 0 to 65535 > > My question is ,how to map (0--255) to (0--65535) > > For example ,i have a general color (245,222,179) > map it to GdkColor ,what is the value ? > > Let's use some basic maths:
245 x --- = ----- 255 65535 Solving for x, we discover that x = 245*65535 / 255 = 62965 And that's the value for red. Similar calculations will provide the values for green and blue. BTW, using hexadecimal base this "conversion" gets simpler. Try for yourself. -- Never trust anybody whose arm is bigger than your leg. Eduardo M KALINOWSKI [EMAIL PROTECTED] http://move.to/hpkb _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
