Greg Ercolano schrieb: > int r1 = 255, g1 = 0, b1 = 0; // start with r/g/b colors.. > Fl_Color c = fl_rgb_color(r1,g1,b1); // ..turn them into an > Fl_Color.. > int r2 = (c>> 24)& 255; // then back again into > r/g/b colors > int g2 = (c>> 16)& 255; > int b2 = (c>> 8)& 255; > Fl::background(r2,g2,b2);
That works, but next step is to replace fl_rgb_color() by fl_show_colormap() and this way the problem comes back. When checking the values I found, that fl_show_colormap() provides an index to colormap-table, i.e. when clicking to red (second field) there results the index "1". Using this i.e. for color(Fl_Color) out of fl_draw, it works well. So I think, my question basically was right, but could have been more detailed: How to convert Fl_Color-index-value to RGB? _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
