xxlib_rgb_create_handle (Display *display, Screen *screen)
xxlib_rgb_create_handle (const char *name, Display *display, Screen *screen)
xxlib_rgb_create_handle (Display *display, Screen *screen){  int prefDepth = -1; /* let the function do the visual scoring */  return xxlib_rgb_create_handle_with_depth(display, screen, prefDepth);}