Clippings/createsprites.c/CreateSpriteWorld.txt

        // create a sprite world
        err = NewSpriteWorld (&gSpriteWorld,        /* on return, a new sprite world */
                                windowPtr,          /* destination */
                                gSpritePlane,       /* sprite layer graphics world */
                                &gBackgroundColor,  /* background color */
                                nil);               /* graphics world to be used as the background. */