I was wondering if it's possible somehow to use windows.pas on OS X with Lazarus? I need to use special library in my project, and one of key-files uses windows.pas :( Any ideas?
You certainly cannot use Windows.pas under OSX. Because Windows.pas exposes the functionality of the Win32 library.
If you need to execute Win32 code on OSX pretty much your only option is Wine.
A more plausible solution is that you find an alternative to this "special" library to which you refer.