On Tue, Feb 25, 2003 at 06:42:20PM +0100, Sven Neumann wrote: > Hi, > > "j. santana" <[EMAIL PROTECTED]> writes: > > > I'm trying to change the background color of a window > > randomly, but I always get a black filled window, > > even though I get random values from g_rand. > > > > (I'm trying this as an exercise in learning GTK.) > > Colors are especially hard to get right so this is probably a bad > exercise to start with. > > > What would be the best way to achieve this effect ? > > > > color.red = g_rand_int_range(rand,0,256); > > color.green = g_rand_int_range(rand,0,256); > > color.blue = g_rand_int_range(rand,0,256); > > The red, green, blue fields of the GdkColor struct use 16 bit, so you > will want to use a range from 0 to 1<<16. This will however not > suffice since you need to allocate the color before it can be used.
I don't think gtk_widget_modify_bg() requires allocating the color... In general with GTK 2 allocating/freeing colors should never be necessary, gdk_rgb_find_color() and gdk_gc_set_fg_color()/gdk_gc_set_bg_color() should be used instead. Havoc _______________________________________________ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
