windows.h

[nz881]

Why is the windows.h header file used in c++?

[shadowCODE]

windows.h is a Windows-specific header file for the C/C++ programming language which contains declarations for all of the functions in the Windows API, all the common macros used by Windows programmers, and all the data types used by the various functions and subsystems.

http://en.wikipedia.org/wiki/Windows.h