# File lib/rubygame/surface.rb, line 256 def set_colorkey( color, flags=Rubygame::SRCCOLORKEY ) if color.nil? color, flags = 0, 0 else color = _map_sdl_color( color ) end result = SDL.SetColorKey(@struct, flags, color) raise Rubygame::SDLError, SDL.GetError() unless result == 0 return self end