This section provides reference information for functions that are implemented by display and/or printer driver writers. Most of these functions are named with a Drv prefix. The Graphics Driver Design Guide describes which functions are required, conditionally required, or optional in a graphics driver's implementation.
Using the Graphics DDI lists the include files that contain declarations for the graphics driver functions described in this section.
The system-supplied GDI services that can be called by graphics drivers are documented in GDI Functions for Graphics Drivers.