by Sam Lantinga in C++ Libraries for C++Builder
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.
by Embarcadero Technologies in C++ Libraries for C++Builder
The Boost libraries are a set of C++ libraries that significantly expand the language using template metaprogramming. This version (1.39) is for the classic toolchain for Win32 only. Use Boost 1.70 for the modern Win32 and Win64 Clang-enhanced platforms.