AlphaChannelType 7898 coders/msl.c               (void) SetImageAlphaChannel(image,(AlphaChannelType) alpha);
AlphaChannelType   35 magick/channel.h   SetImageAlphaChannel(Image *,const AlphaChannelType);
AlphaChannelType  286 wand/magick-image.h   MagickSetImageAlphaChannel(MagickWand *,const AlphaChannelType),
AlphaChannelType  786 wand/mogrify.c             AlphaChannelType
AlphaChannelType  790 wand/mogrify.c             alpha_type=(AlphaChannelType) ParseCommandOption(MagickAlphaOptions,