gdImageColorClosest 3013 gd/gd.c        	RETURN_LONG(gdImageColorClosest(im, red, green, blue));
gdImageColorClosest 2333 gd/libgd/gd.c  						nc = gdImageColorClosest(dst, ncR, ncG, ncB);
gdImageColorClosest  393 gd/libgd/gd.h  int gdImageColorClosest(gdImagePtr im, int r, int g, int b);
gdImageColorClosest  304 gd/libgd/gdtest.c   foreground = gdImageColorClosest (im, 0, 0, 0);