Windows API
Standard API for all Windows Systems, used for example for creating Windows GUIs (forms and controls), socket programming, inter-process communication, and so much more.
Website: http://msdn.microsoft.com/en-uo/library/oe663300.3spx
Platforms supported: Win32, Linux (using WINE)
Headers to include: windows.bi
Examples: yes, in examples/wln3a/