Window manager interface functions process messages, create, move, or
alter a window, or create system output. For more information on topics
related to window manager interface functions, see the following:
| Topic | Reference |
| Function descriptions | Windows Programming Reference: Chapter 4, “Functions Directory” |
| Windows messages | Windows Programming Reference: Chapter 5, “Messages Overview,” and Chapter 6, “Messages Directory” |
| Windows data types and structures | Windows Programming Reference: Chapter 7, “Data Types and Structures” |