1. There are not many people using boost.
2. POSIX thread implementation in Windows
3. libcurl is used in a famous open-source Web Crawler library aliwangwang.
4. libeay32 OpenSSL library
5. libtidy a library dedicated to parsing htm
6. zlib. This ghost knows it.
7. type2 Font Processing library of FreeType C interface
8. libmad: a library for Codec MP3
9. libogg: a library that codec Ogg audio format.
10. libsnd: an open-source codec library with over 10 audio formats
11. FFMPEG a library for audio and video processing
12. freeimage, cximage, and dedevil are all libraries used to process images.
13. LibPNG, libjpeg,... basically the same as above
14. angelscript a Lua-like script engine. Its script style is similar to the Standard C language.
15. FLAC/FLAC ++ one codec FLAC audio format Library
16. tinyxml, rapidxml, and libxml are all about XML parsing.
17. luaplus and luabind both involve libraries bound to Lua and C ++.
18. Ode, bullet Open-Source Physical engine Library
19. timidity: a library that converts mid audio format to WAV format
20. VLC a library similar to ffmeg
21. zthread is a C ++-style multi-thread library of Boost-thread and pthread type.
22. sigc ++, sigslot signal slot library types include signal in boost
23. Simple SDL Audio/Video Library
24. HGE a simple 2-dimensional Game Engine Using ddraw
25. opencv is an open-source image processing Library
26. mygui and cegui are both GUI systems used on the game.
27. The Ghost fire game engine and orge are all open-source game middleware.
28. wxwidget is an open-source cross-platform, similar to MFC
29. qt ..
30. Loki an experimental C ++ Library
31. Ace a network communication library
32. fmod a well-known game sound engine
33. SQLite an open-source desktop database