gdImageColorClosest 2893 gd.c           	RETURN_LONG(gdImageColorClosest(im, red, green, blue));
gdImageColorClosest 2334 libgd/gd.c     						nc = gdImageColorClosest(dst, ncR, ncG, ncB);
gdImageColorClosest  512 libgd/gd.h     int gdImageColorClosest(gdImagePtr im, int r, int g, int b);
gdImageColorClosest  304 libgd/gdtest.c   foreground = gdImageColorClosest (im, 0, 0, 0);