QuickDraw

QuickDraw is the 2D graphics library and associated Application Programming Interface (API) which is a core part of the classic Mac OS operating system. It was initially written by Bill Atkinson and Andy Hertzfeld.[1] QuickDraw still existed as part of the libraries of Mac OS X, but had been largely superseded by the more modern Quartz graphics system. In Mac OS X v10.4, QuickDraw has been officially deprecated. In Mac OS X v10.5 applications using QuickDraw cannot make use of the added 64-bit support. In Mac OS X v10.8, QuickDraw header support was removed from the operating system. Applications using QuickDraw will still run under OS X 10.8 through macOS 10.13; however, the current versions of Xcode and the macOS SDK do not contain the header files to compile such programs. https://en.wikipedia.org/wiki/QuickDraw