This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
With Microsoft Windows, the Win32 API is the core interface to the operating system. Win32 programs call functions in a core set of DLL libraries. Win32 is for both 32-bit and 64-bit Windows. (Old programs that run in 16-bit mode are not using Win32.)
- Windows Development at MSDN
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