Graphics device interface (GDI) functions perform device-independent graphics operations within a Windows application. For more information on topics related to GDI functions, see the following:
| Topic | Reference |
| Function descriptions | Windows Programming Reference: Chapter 4, “Functions Directory” |
| Windows data types and structures | Windows Programming Reference: Chapter 7, “Data Types and Structures” |
| Printer escapes | Windows Programming Reference: Chapter 8, “Printer Escapes” |