UndefinedPixel    953 Magick++/lib/Magick++/Include.h   using MagickCore::UndefinedPixel;
UndefinedPixel   1614 magick/option.c     { "Undefined", UndefinedPixel, UndefinedOptionFlag, MagickTrue },
UndefinedPixel   1854 tests/validate.c     for (j=0; reference_storage[j].type != UndefinedPixel; j++)
UndefinedPixel    437 tests/validate.h     { UndefinedPixel, 0 }