GPD Value Types

Important

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 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