gdImageSaveAlpha 1844 gd/gd.c        	gdImageSaveAlpha(im, save);
gdImageSaveAlpha  591 gd/libgd/gd.h  void gdImageSaveAlpha(gdImagePtr im, int saveAlphaArg);
gdImageSaveAlpha  249 gd/libgd/gd_filter.c 	gdImageSaveAlpha(srcback, 1);
gdImageSaveAlpha  116 gd/libgd/testac.c   gdImageSaveAlpha (im_out, !blending);