gdImageColor     4703 ext/gd/gd.c    	if (gdImageColor(im_src, (int) r, (int) g, (int) b, (int) a) == 1) {
gdImageColor      785 ext/gd/libgd/gd.h int gdImageColor(gdImagePtr src, const int red, const int green, const int blue, const int alpha);