const IUP_BUFFER = "BUFFER"
const IUP_STEREO = "STEREO"
const IUP_BUFFER_SIZE = "BUFFER_SIZE"
const IUP_RED_SIZE = "RED_SIZE"
const IUP_GREEN_SIZE = "GREEN_SIZE"
const IUP_BLUE_SIZE = "BLUE_SIZE"
const IUP_ALPHA_SIZE = "ALPHA_SIZE"
const IUP_DEPTH_SIZE = "DEPTH_SIZE"
const IUP_STENCIL_SIZE = "STENCIL_SIZE"
const IUP_ACCUM_RED_SIZE = "ACCUM_RED_SIZE"
const IUP_ACCUM_GREEN_SIZE = "ACCUM_GREEN_SIZE"
const IUP_ACCUM_BLUE_SIZE = "ACCUM_BLUE_SIZE"
const IUP_ACCUM_ALPHA_SIZE = "ACCUM_ALPHA_SIZE"
const IUP_DOUBLE = "DOUBLE"
const IUP_SINGLE = "SINGLE"
const IUP_INDEX = "INDEX"
const IUP_RGBA = "RGBA"
const IUP_YES = "YES"
const IUP_NO = "NO"
