编译环境: Borland C++ Builder 6.0, Windows Server 2003 DDK 运行环境: Win98/2000/XP/2003 下面是访问 USB 口必备的函数: #include #include #include #include "C:/WINDDK/3790/inc/ddk/w2k/usbdi.h" #include "C:/WINDDK/3790/inc/ddk/w2k/devioctl.h" #include //