Windows only.
Determines how Coord 'Pixel' is interpreted. This is determined initially by the value of the DYALOG_PIXEL_TYPE parameter and, when altered by this function, applies to all subsequent GUI operations.
Y is a character vector that is either 'ScaledPixel' or 'RealPixel'. Any other value will cause a DOMAIN ERROR.
The result R is the previous value.
2035⌶'ScaledPixel' RealPixel 2035⌶'RealPixel' ScaledPixel
2035⌶'realpixel' DOMAIN ERROR 2035⌶'realpixel' ∧