游戏开发包。DirectX相关的组件包装, DirectDraw、D3D、DirectInput、DirectSound、DirectPlay、DirectMedia、及MIDI播放；图形文件读写；网络编程；多线程等方面很多内容- Game development package. DirectX correlation module packing,
DirectDraw, D3D, DirectInput, DirectSound, DirectPlay, DirectMedia,
and MIDI broadcast; Graphic file read-write; Network programming;
Aspect very many contents and so on multithreading
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