C++Builder中，通过HID_GUID找到HID USB设备，并向咖啡机设备发送命令以取得咖啡机设备的参数。深圳企业www.wik.com.hk公司的咖啡机项目基本源代码。-In C++ builder, through HID_GUID to find HID USB device. and Send command to Coffee Machine to get the parameters of Coffee Machine. Project in ShenZhen industrial www.wik.com.hk　,the source code is based for the whole project.