GPD Value Types

Important

The modern print platform is Windows' preferred means of communicating with printers. We recommend that you use Microsoft's IPP inbox class driver, along with Print Support Apps (PSA), to customize the print experience in Windows 10 and 11 for printer device development.

For more information, see Modern print platform and the Print support app design guide.

All GPD file entries contain a value specification. The GPD language defines the following value types:

Symbolic names

Text strings

Constants

Numeric values

Boolean values

Lists

Pairs

Rectangles