gdImageCreatePaletteFromTrueColor  434 ext/gd/libgd/gd.h gdImagePtr gdImageCreatePaletteFromTrueColor (gdImagePtr im, int ditherFlag, int colorsWanted);
gdImageCreatePaletteFromTrueColor  127 ext/gd/libgd/gd_gif_out.c 		pim = gdImageCreatePaletteFromTrueColor(im, 1, 256);