一个运用 DirectSound 技术开发的流式播放类: CDirectSouundPlayer，能设置缓冲区的大小。有播放、暂停、停止、静音与音量调节等功能。 -A use of DirectSound technology development of the streaming class: CDirectSouundPlayer can set the buffer size. Play, pause, stop, mute and volume control functions.